Have you ever told someone who was very polite and well informed about a topic to butt out of a conversation?
I have! Though I guess the polite is questionable. Sometimes even if they're polite and well informed it's not a conversation they're a part of, even if they're polite about the intrusion. It generally doesn't exactly happen much (to massively understate the extent it doesn't), though, no.
What I have an issue with is what I see as a push to turn entire college campuses or dormitories into such areas where only a certain political leaning is really accepted, because I don't want to be restricted from having my views in the place where I will be living and learning every day, and where I'm looking forward to being able to converse with many, many people of different view points and shape myself and my views accordingly. I'm afraid of the Yale incident sort of stuff, that's what I think if when I think of the whole safe space debacle. Whether or not you think that's misplaced worry or wrong in some way or
whatever is up to you, but I'd like to at least be taken seriously, here.
All I can really say is to reassure you you're almost certainly worried over a problem that's not going to actually exist, at the very least to an extent that's going to have any particularly lasting effect. There actually
are a lot of campuses out there where idealogical leanings are pretty restricted, and there have been for decades, but you're
probably not going into one if you're worried about what you're worried about.
To add to that, even if you
do have that sort of problem, you're still pretty ruddy likely to be alright. You'll find people that share similar views, or at least accept your expression of different ones, even if you occasionally have to sit down and shut up (like, y'know, folks on the other side of the political divide largely have to bloody
constantly on conservative campuses, and have for longer than either of us have been alive), and do the work to get your education instead of mingle. As someone that's lived on and gone to campuses where expressing certain ideological points to a particularly wide audience was an
incredibly bad idea, and not just in the "oh you might lose job opportunities or maybe be kicked off campus" sense, you'll still be able to have the whole college experience and get what you're actually there for (that diploma, and maybe some networking) even if there's some subjects you keep your mouth shut on. Above and beyond everything else, most of your discussion with other students is going to be on subjects where political leaning probably doesn't have much application (because you'll have textbooks and assignments, and they'll have answers that aren't up for much debate) -- there's going to be a lot to talk about even if politics or religion or whatever is off the board.
As for the rhetorical question... it sorta' isn't, I guess, but the problem you're running into is scale. It's something that's happening to some degree on some campuses, but for most, you don't have a problem, and on top of that most where you
would, the problem is not something someone expressing
conservative viewpoints would have. You could still theoretically hit the bad luck lottery, but it's... seriously not likely.