How should the Pit be changed, if at all?

I don’t think that’s correct, at least in the US. IIRC, somewhere north of 60% agree with same-sex marriage.

I haven’t seen that happen here (though there are many who have been around longer with participation less spotty who might have). But from what I’ve seen, the Heckler’s Veto in the Pit doesn’t shut anything down in the actual discussion forums like GQ or GD.

But back to my main point, anything that can be reasonably assumed to cause actual harm to anyone in this community needs to be restricted.

ETA: Is There a Non-bigoted Reason to be Anti-Same-Sex Marriage?