In fact, you lack the ability to love anybody. Love isn't about gender, sex parts.
You don't have to love the same gender, to not be against same sex love. At least not in a romantic way.
So, 90% of humans, don't know what love is.
Some people spend their life trying to tell people who they can or can't love. If they are 18+, what's the problem? God never said you can't love the same gender, seeing as God probably doesn't exist anyways. If God exists, they aren't male or female.
Your body might be male or female, that doesn't mean you are.