Those "histrionics" were your own words, slightly duplicated, with "say something like" added. While I don't disagree with this comment, I would recommend that you take the implied advice before expecting others to.

Dismissing someone's opinion because they compare those they don't agree with to literal fascists is not the same as dismissing someone's opinion because they do that. One leads to people being targeted for violence and potentially assassinated, the other calls out incitement to political violence.

At what point in history would it have been acceptable to call Adolf Hitler a "fascist" in the modern sense, assuming that neither he nor any contemporary political group identified with that term?