I shared a post on social media that got my sister riled up so we'd been having a mostly civil discussing over the last few weeks, until today. We'd been going back and forth on political views and I've been pointing out quite a few fallacies (none of which she'll acknowledge) and think I've pushed her buttons. She told me that I'm inferior to her because I'm gay, I don't deserve the right to be married because I cannot naturally produce life within my relationship. I have a whole argument ready about a "good Christian" heterosexual couple we mutually know, and she highly regards, that is unable to have children and had to adopt, so they don't technically deserve marriage equality under her idea of marriage.

My question is - is there any point to continuing down this road? I've kept everything very civil on my end, removing the emotional statements and sticking to just facts, I remind myself the things she's saying are the same things I said a few years ago and that if she's even the tiniest bit interested in growing as a person, it'll make a difference. She's about 10 years younger than me but she has this attitude of, "Oh, bless your heart, you're so delusional!" I've considered calling out her dishonesty and forcing her to acknowledge her bigotry (with the aforementioned example) or I'd explain I'd like to bow out because I see no benefit to a conversation where all parties aren't willing to engage honestly.

Thoughts?