Why do leftists defend Palestinians with anti-gay/trans views, yet celebrate a right-wing white man's murder for similar views?

So if someone who isn't white is "homophobic" or "transphobic" it's ok but if a white man does it they suddenly don't care about his life and laugh at his death.
Why do leftists defend Palestinians with anti-gay/trans views, yet celebrate a right-wing white man's murder for similar views?
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