But, I mean, English already has a word for that (bigoted).

Having, and properly using, different words for even slightly different concepts is important for efficient and effective communication. If everyone just starts lazily using one word to mean multiple similar concepts, when other words already exist for those concepts, then that just leads to misunderstandings and confusion.

I understand that non-native speakers may not yet have the vocabulary necessary to use the correct words, but that's an opportunity for them to learn the correct words, not an excuse to dumb down the language.