Conservatives and right-wingers are the only acceptable target.
Why do you think Kimmel tried to characterize the killer as MAGA? Because he can't joke about him being gay, having a troon boyfriend, being antifa, not even about being a furry. Mocking right-wingers, even if they were victims of murder is considered safe comedy
Late 90s was the Monica Lewinsky scandal. Dems got dunked on pretty hard then.
Bill Clinton was seen as a Conservative democrat.
Believe it or not, back in the days when republicans and democrats could still sit around the restaurant bar and talk/joke about politics, everyone was viewed through the lens of conservative/liberal no matter what party they were in.
As the dem party took a hard left with 0bummer, conservative dems shifted toward the MAGA party. Unfortunately the GOP crust and donor class is still primarily liberal.
Back then, Republicans were more Conservative & Dems were fine pretending to be Conservative. I’m pretty much a 1990 Conservative and that somehow makes me SuperMcMustacheMan.