These sort of posts are wrong, irrespective of who ever makes them. I am not active in the Politics subforum nowadays, and might have missed this post. There can be no justification to incitement of violence, no matter which side of the political spectrum makes them. Whenever some fringe elements makes such a threat, the biggest losers are more moderate members of his own political group. For example, the Capitol storming resulted in loss of support for the GOP among swing voters. And similarly when some left-wing nut makes a post like
"Republicans should be put to death", it will result in moderate voters leaving the Democrat party.