Why do people gaslight and throw out accusations just because they don’t agree with you?

Like every time I say I think obesity and anorexia are health crises and should not be praised or embraced…I get called an asshole

If I say that I won’t date a trans woman…I get called an incel…

What’s the deal? Can’t they just agree to disagree, or at least give constructive criticism?
Why do people gaslight and throw out accusations just because they don’t agree with you?
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