The idea that people have a fundamental right to be protected from offence is both incredibly silly and dangerous. The only right that matters here is that of a disabled man to participate in public life.
What happened last night at the BAFTAs is a genuine example of competing rights – on the one hand, including someone with a disability who has every right to attend, and on the other, protecting people from being assailed by racial slurs. I honestly don't know how anyone's meant to square that.