I see lots of posts about that guy being the target here and what it means, but I think that’s reading this wrong.
Everything they say is projection.
He’s clearly saying that political assassination is a tool on the table.
I’m not worried about MAGA attacking themselves. The worry is they’ve made any attack on a politician an acceptable and valid response. (More than they already had previously.) They are saying the other guy will do it, so it’s ok for them to do it too. Expect to see more targeted violence against specific politicians MAGA disagrees with.