You're completely right, both sides have speech they find unacceptable. But lets try to look at it a little closer, what kind of speech does the left try to ban?
Mostly stuff like racism, sexism, homophobia, transphobia, stuff that hurts others and keeps them down. But i agree, sometimes they take that too far. I think more left leaning people should focus a lot more on economic equality and workers rights.
What kind of speech does the right want to ban? Mostly stuff about their human rights violations, as far as i can tell.
Two sides of the same coin, i guess.
How are there not riots over this?!