I can't speak for Europe but in the US crime has been on a downward slope since the 90s, all while the percentage of immigrants in the US has gone up.

A few studies have shown that immigrants have a lower incidence of crime, especially undocumented ones. I don't know of any reputable studies (in the US) that show otherwise.

The violent protests in Ireland were explicitly enflamed and coordinated by Musk and other right-wingers over social media: https://newrepublic.com/article/211936/elon-musk-race-war-be...