Obvious as it may sound, people with authoritarian beliefs hiding behind free speech actually consider it as a weakness akin empathy. It allows losers like them to amplify their reach despite not being in power. They abandon their “free speech absolutist” postures the moment they think they are in power.
I would have reported the pic for gore, but I think hiding it under spoiler is fair game. What humanity should have learned from this story is that just because ideologies that consider fairness or empathy a weakness might appear viable and effective to grab power quickly, we have plenty of gory evidence that they do lead to the annihilation of millions, including those initially benefiting from them.
A spoiler would be OK by me, but I would still encourage everyone to look at what they did if they have not seen it. Visit a holocaust museum even. Frankly, I don’t know that everyone understands, there are an increasing number of people who downplay or outright deny the horrors of World War II and everything that led to it.