The issue isn’t the hisotry of the word so much as the current implications.

I agree with this, but you don't.

I don’t feel bad at the prospect on losing insults with a history of bigotry behind them

So which is it? Does historical etymology matter or does current use and meaning? Again, the vast majority of people do not find "Stupid" to be a bigoted phrase associated bigotry. The current, descriptivist definition in how it's actually used is not bigoted so you criticized it on it's history. Then you say the history doesn't matter but how it's used?