Purely my experience, but I don't have the impression that people championing it for some reason aren't very inclusive or tolerant at all. Advertisers gladly take it up because they think doing so minimizes controversies and people with objection are brought in line.

About bringing people in line, I think it is easily identifiable on topic like Covid. I am vaccinated, but the propaganda sometimes makes me wish I wasn't. The danger of Covid doesn't justify this type of censorship. And additionally I don't think it helps at all, on the contrary, it probably boosted hesitancy. It did boost hesitancy for me and others I know. Out of principle and because some pushing for it aren't trustworthy.