People get mad when you quote some of what Charlie Kirk said because a lot of what he said was misleading or false. People praise Charlie Kirk for being for free speech and then demand others stop exercising their free speech because they pointed out that Kirk had some bad ideas.
Some on the right are using Kirk’s death to encourage further violence. They often cherry-pick examples of violence that exclude violence done by people more on the right, and blame all “the left” or all “Democrats” even though almost no one on the left had anything to do with Kirk’s death.