If I claimed that I had no choice but to become a Republican, I would be justifiably laughed at (even by fellow Republicans). Political views and affiliations are certainly choices.
Anyone can claim that their opinion is the only sane one.
I explained my choice. Choosing the lesser evil is a choice. I don't think anyone in this thread besides you is getting hung up on this, and I don't know why you're being so aggressively pedantic. It's weird.