This is not about whether speech offends others or not. We are specifically talking about hate speech
Hate speech causes actual measurable harm and makes the world less safe, particularly for the world's more vulnerable -- minority ethnicities, women, LGBTQ+ people, the differently abled to name a few
Hate speech promotes inequality and stokes violence. One can ignore hate speech, but the problem isn't that you or I hear it per se. It is that some will hear it and commit violence or other harm