While I agree there are over-sensitive people in our society, I'm not sure you can reliably recognise hate speech in translation.

I mean, I know a word that Google Translate defines as "a Jewish person" - do you think you can tell me if it's offensive or not based on that?

I don't know the context behind "communist bandit", but the idea that a term can't be hate speech simply because it doesn't contain any words that are obviously bad when stripped of cultural or historical context is wrong. The recipient of these slurs likely does have that context and will take that into account when interpreting it.

Calling an African American in the South a "cotton picker" is profoundly hateful even though the term itself seems innocuous.