In the future, when mating with aliens and robots is commonplace, will homophobia still be a thing?

Oh sure. By then, it will be replaced with ETaphobia and Droidaphobia.

I imagine when you can custom design a perfect robotic sex partner that’ll be the only thing.

Botphobia will be seen like rubber dolls, unnatural. Haha, so yes.

But of course! My team is better than those other teams!
Rah! Rah! Rah!
Sis! Boom! Bah!

Only in YOUR future Loli. It sounds like a future consistent with your present.

Homophobia in particular will continue to exist as long is there is religion.

I’d still insist that you wear lipstick @ragingloli no matter how cunning the disguise.

If I met a droid like Data, intelligent, curious, personable, and programmed with (how many?) lots of ways to satisfy, that would be it for me.
Other humans could do whatever trips their trigger.
I find most Klingons repulsive, but Warf is exceptional. Being a biter, I would be open to a go at him.
Call me what you will, but human parings have lost my interest.
The tentacle thing still eludes me.

“The tentacle thing still eludes me”.

@Patty_Melt, being so al dente, may I commend you to a jentacular tentacular experience.

Ew!
My choice is more in the way of a growling, snarling Warf, who won’t whimper and skulk away when I bite, scratch, and throw him against the wall.
Oh wow! Did I say that out loud?