Caitlyn Jenner is worth somewhere around one hundred million dollars and lives in a mansion on top of a hill. Of course she's going to be a Republican, it's in her own self interest and, let's admit it, almost all of us act in our own self interest. Of course she has no concept of what it's like to be a homeless trans person who has to resort to sex work to live. Or a trans person who is working but scrimping to save pennies toward surgeries. But she does have the right to choose her political party, to support whoever she wants and say she supports them. Yes, it sets my teeth on edge when I hear her say the stupid things she's said but, as before, she has a right to say them. I hope Jenny, Kate, Candis, et. al. can talk some sense into her but I doubt it.
"I don't agree with what you said, but I will defend to the death your right to say it."