I've never had any troubles getting my tables to play something else by asking, but my condolences if you've had a different experience.
I've usually gone with "meet people, make friends, introduce blades in the dark" rather than trying to find other bitd players.
I don't find it as difficult as it used to be just to find people who knew what an RPG was at all, that may influence my perspective. I'm just happy the hobby is healthy
Yeah if my group weren't smart enough to see how absolute shit 5e was after i brought up alternatives i don't think I'd still be playing ttrpgs today.
