Unless you want to change your mind, nobody can force you

Yesterday at my workplace, my coworkers were talking about something. I wasn't even paying attention until one of them, let's call her Ally, asked me: "Gay people choose to be gay, right?". I felt unease in the moment, we talked about that once when she told me her brother is gay. But I never expected an opinion like that from her. I am 22, and I am pretty liberal even though in my country we have a very stereotypical view about gay people, homosexuality is a taboo subject. However I tried to educate myself, and make my own opinion about it, without the already preconceived notion that I was taught since my childhood. However until I came to the U.S. I was brave enough to say what I think, so I told her: " I believe that people are born the way, I mean I am straight, and having let's say lesbian friends is not going to make me like girls". After that she told me this story about how her brother used to date girls, and until he started hanging out with gay guys he changed. And also how some co-workers had sex with a gay guy, but they weren't gay because they f*$# him not the other way around. I couldn't wrappep my head around that. I spent the rest of the day thinking about that and how her point of view is different than mine. I remember that when I told her that I believe in God, but not in going to church or church in general, she was like " What? How is that possible?" I started explaining to her my point of view, but I could see it in her eyes -the judgement- and the fact that she didn't care about my opinion because she already made up her mind. Therefore I started thinking, and trying to put myself in her position but I couldn't because like her I already made up my mind as well.