BUT - I know that this particular image is very offensive and disturbing to many of the people who we share this planet with, and I see no point in putting something in their faces that will upset them, especially for something as ephemeral and fairy pink as a repaint of an old airplane.
As for the censorship of speech/expression, I'd point out that every country in the world has limitations on speech and expression. Have you seen any good snuff films on TV lately? No? Want to see them on TV on a regular basis? Want to be the victim of a snuff movie? No? Well, the reason why you don't see anything like that is because there are standards of censorship and expression that are not fit for anyone to view. What about videos of sexual assault on children? Are you OK with that?
There are many in the world who don't like the restrictions on either of those, and many more obscene and anti-human activities. So they wouldn't offend you, then? Well, they do offend me, and nothing you can say would convince me that there is any merit to such "works of art". How about you?
And yes, I do have a right to be offended, as does everyone - except, perhaps, you?
There is a very fine line between speech or expression that harms people and speech and expression that doesn't. I specifically drew attention to what some (especially in the United States, among other free western societies) refer to as "calls to action". Speech or expression can be reasonably restricted when it crosses this barrier, this barrier being the difference between saying: "I hate a particular person, I HOPE (key word) they die", and "I hate a particular person, SOMEONE PLEASE GO KILL THEM!". They are 2 very different expressions of speech. One, whilst indeed hateful and more ofthen than not shunned by the populous, is and should be PROTECTED free speech (i.e. "I hope someone dies"), the other is an active "call to action" which is trying to call for people's harm. This form of speech is restricted even in the most liberal of societies (such as the USA) because it crosses that very important barrier between simply offending someones feelings and actually calling for their physical harm.
So look, I can agree that to have any form of civilized society, we need some form of limitations on liberties, which is why, contrary to your insinuations, I also do NOT believe sexual assault, whether of children or otherwise, should ever be accepted, it crosses that oh so important line, obviously.
To bring this back into context. Hitler and the Nazi regime actively called for the deaths of people. They actively sought to murder innocents. If Hitler would have said "I hate Jewish people", that would be free speech and should be protected, HOWEVER, as soon as Hitler said "I hate jewish people, so let's kill them all", that is now crossing that very important barrier. So, again, back to context, a Nazi flag is a symbol of hate at most and can not and does not in any way cross that line, since it is just a symbol of hate, the symbol itself does not in any way call for violence. If it was a sign that said "Kill all Jews", then it would be crossing that line, then it should NOT be protected by free speech/expression laws. But it's not that, its a geometric shape. Hell, in India you'll find swastikas all over the place, they're a religious symbol.
If we start banning symbols because we're offended when in fact they do not cross that oh so important barrier of "calling to action", then what's to stop us from censoring ANY symbol people find offensive? What if I said the seals and emblems of the British Royal family offend me because they once caused mass deaths via imperialism? What if I say that about the previously mentioned Communist hammer and Sickle? What if I say that about the various logos of the pharmaceutical and medial industries, which have in fact, historically, as part of researching modern medicines, led to many peoples deaths? What if I say it about the likes of Apple and Samsung or any other modern mega corporation that exploits children in developing or underdeveloped countries for their cheap labour? Where does it stop?
It's just a symbol. You have every right to be offended by it, but you do not have a right to censor it because you're offended. Neither you, nor me, nor anyone else getting emotionally offended by a symbol or an opinion or whatever other form of speech or expression that does not violate that basic line of "call to action", have a right to censor said symbol, opinion, etc, on the basis of offense. It's beyond absurd, it's tyrannical and it's unnecessary for this kind of thing.
"start acting like the Nazis" Hyperbole at it's clearest. If you don't understand the difference between banning a symbol of hate, and putting people in gas ovens, then I hold out little hope for you.
The problem is, the west, or rather, many people of the west fail to grasp that this is how these things begin. Libertarians compare subjectively innocent breaches of liberty to what Nazi Germany did, i.e. "difference between banning a symbol of hate and putting people in gas ovens", as you put it, because these small breaches are EXACTLY what eventually lead to the bigger breaches. Nazi Germany and Soviet Russia, didn't just one day, overnight and suddenly start mass murdering innocent people. It was a gradual build up. It started with small, innocent restrictions, more often than not, it started with banning or restricting certain speech or opinions. Eventually banning and restricting peoples right to self defense. Then they slowly moved to labelling people and eventually demonizing groups of people for some manufactured narrative they invented to justify their genocides. These things don't happen over night. It's not an on/off switch. It ALWAYS starts with small, subjectively innocent or serious (depending on your understanding of liberty), breaches of liberty and eventually leads to the many horrors of the past.
It's these exact same mechanisms driving the medical apartheid between the vacccinated and unvaccinated today, as we speak. The same mechanisms have been used to divide us all over many issues. And it always, ALWAYS, eventually leads to the same outcome: tyrannical dictatorship and mass genocide. It begins with censorship.