I would look at it like, a pub shouldn't be able to refuse to hire a room to someone because of their GC views.
Let's say you want to hold a meeting of your local UFO group at the pub, you shouldn't be able to refuse service just because the person booking the room also happens to hold GC views.
But quite possibly you should be able to refuse to hire the room for a GC event, while allowing other types of political event.
Now if it's a major convention centre, no, I don't think you should be able to refuse a GC event. That's probably a lot harder to find an alternative to.
Or small websites should be able to have whatever rules they want. But major platforms like Twitter and Reddit maybe shouldn't be allowed to prevent GC views being expressed.
It's a threat to free speech if the big platforms are all biased in a certain way, and I think free speech is more important than the property rights of the companies to control those platforms in the way that they want.