Genuine question: is it?
https://carnegieendowment.org/research/2025/09/nepal-gen-z-t...
https://en.wikipedia.org/wiki/France_in_the_American_Revolut...
> [...] not defending [the people who "seem to genuinely be OK with violence"]—or even Luigi (the one who carried out the violence in question)— [...]
> Mangione is a murderer
Are you trying to rage-bait people?
Luigi has been accused of the shooting, but there's discrepancies with the possibly illegal search of his backpack and the body cameras of the police were turned off for 11 minutes which raises suspicions of planted evidence.
Unlike the UK, expressing opinion is inherently legal here. What would be illegal is lying about specific facts, or expressing opinion based on secret facts you falsely claim to have. However, the standard for damaging a public figure, which Mangione certainly is, is very high -- Mangione would need to show "actual malice" (that is, that the speaker knew or should have known they were making false statements).
And the growing class divide in the USA I think is the reason why folks are increasingly seeing violence against the upper class is seen as the only option.
Again doesn't mean it makes it right, but it explains why it is almost only an US phenomenon.