Alright. Correct me if I'm wrong but using ____romantic + sexuality really invalidates all sexualities tbh. As far as I know, you can't use ___romantic unless you're asexual. If you're attracted to the same gender you're homosexual. It entails both romantic and sexual attraction.
You can't say you're biromantic homosexual because that would mean you see homosexuality and bisexuality (or any other sexuality) as just sexual attraction which is a really harmful idea.
It's a different thing when people who identify as asexual use it since it's really not a choice that they're not sexually attracted to anyone. Hence, saying they're romantically attracted to one gender (aka homoromantic) etc makes sense.
There's no need to put a different label when the term bisexual, for example, means you're sexually and/or romantically attracted to different genders, even if the spectrum is different for them.