A made up sexual orientation. People who identify by it define the "sexuality" as only being attracted to cis people of the
opposite sex. It's a way for people to justify their
transphobia.
For people who don't understand why it's bad:
1. You can't "make up" a sexual orientation.
2. People that "identify" as super straight say that they're only attracted to cis women because they're the "real women". That's just so obviously
transphobic.
3. A persons chromosomes aren't something that you can see. When you meet someone for
the first time, you can't tell just by looking at them what their chromosomes are. So as having a crush on or being attracted to someone isn't a choice you consciously make, whether you're attracted to someone or not can't be affected by something you can't see or know about (unless they tell you).
Further explanation:
Saying you're not attracted to someone just because of their chromosomes is the same and just as ridiculous as saying that you're not attracted to someone because they don't have two kidneys. You can't tell just from looking at someone the numbers of kidneys they have so it can't affect whether you're attracted to them or not.
