>>28375002I normally scream this in caps but I will explain it gently, just stuff off the top of my head
>Awkward energy >negative atmospheres>if there actually IS good synergy, shipping starts (do you want to read posts about how your oshi is getting plowed by a dude?)>cuckpostingPeople are into vtubers for the escapism, or many are at least. People like watching cute girls doing cute things, a male takes you out of that.
cuckposting aside, there simply isn't much of a good reason to mingle between genders. Any collab where there were mixed girls/guys would have been better if it was all girls. This goes both ways - if you're a fan of homos the collab would be better if it was all guys
There's other reasons, just stuff I thought of instead of screaming in caps lock