Democratic politics with free association and free elections with secret ballots are what it possible for you to hold and share your opinions, especially the unpopular ones.
Which is why it's sad to see all that trivialized in the hyperbole surrounding the present election. Both sides would have you believe that the other side's pompous windbag is a threat to western civilization, and only their pompous windbag can save it. And very few have the guts to say that the emperor is naked, they're both mostly worthless, the president doesn't matter all that much, and the real issue is this: can we maintain a civil society where we listen to and respect each other, even when we disagree? Because that's what really matters, and that's a hill worth standing on and fighting to defend.
I may not agree with a word you say, etc.
That's exactly the hyperbolic conflation of the present petty squabble with the grand march of civilization, as if they were the same or even closely related, that I'm objecting to.
Healthcare policy for example is life or death. You don't always choose the hill you die on. Sometimes you need lifesaving medical care that is considered illegal abortion now. This is politics too and exposure to its risks is not evenly distributed. I'm glad they're not particularly distributed to you right now but some of us experience it differently.