But I thought sexuality was ~fluid~ and people who thought they didn't like dick tried it and discovered they loved it all the time!
For real though, if you forget about the Christian conversion therapy framing and just asked "do confused teens going through puberty ever call themselves a different sexual orientation than they will later end up being?" I think just about everyone would say yes, that happens all the time. There are thousands of twitter threads where people joke about the dumb or wildly inaccurate identities they adopted in middle school. Figuring out who you are and what you're into is a normal part of growing up and it's harmless when it's not responded to with irreversible medical procedures.