In the case of Mangione, some stats proved his support reached the real world. If I remember correctly, something like 43% of <30s approved of his crime.
31% positive for those under 45, 8% positive for those above 45.
41% negative for those under 45, 77% negative for those above 45.
Not the majority, even for younger people. And remember, this is just U.S. opinion; people in other countries might view this differently (likely even more negatively).
Not an American, so I don't really have much say in it. But, if 31% of your younger population is thinking that assassination was justified... That's tens of millions of people. I would be wondering why, and how that is even acceptable. It's definitely showing how it can't be categorized as black/white issue.
Look at the website for that polling company. It is bizarre. None of the people on the people page have the company on their LinkedIn pages. Seems to be astroturf.
Edit: look at the photos of the people… AI generated perhaps?
Ah, thanks, I forgot the real numbers. That's still tens of millions of people supporting an assassin, which majority or not, should tell you something about this country.