I try to understand things from other peoples perspective, but I will not emphasize with those who consider me inferior and undeserving of my human rights.

You'll never understand other perspectives if you deny them the ability to speak.

Additionally, we know what happens when right-leaning people are denied access to mainstream platforms with their non-extreme, politically incorrect speech: they move to fringe, extremist platforms where they are radicalized and encouraged to engage in acts of violence and terrorism.

I understand your frustration with conservative viewpoints on things like race and gender, but silencing them isn't going to change their minds. I have very close family members who have never been further from changing their viewpoints because they're never invited to discuss them, just told their views are unacceptable and they can either silence themselves, or go somewhere else. And so they abandon mainstream platforms and turn to fringe websites promoting violence, intolerance, terrorism, and more extreme forms of bigotry.

Unless you would prefer those people to stop existing (that being bigotry as well), some tolerance of them is necessary. Pluralism is a net gain for all people, and is a two-way street.

Again, I'm not saying violent or extreme rhetoric shouldn't be prohibited by owners of Kbin or Lemmy instances. I'm simply saying that I don't believe it's healthy for only left-wing perspectives to be allowed in the Fediverse.