My personal experience bears out on this one, tbh. The amount of attention I get on grinder totally dwarfs bumble and tinder.
It’s just the market. Tinder is 75% men - women get inundated with messages/matches and men have to do more to stand out in such a saturated market.
Meanwhile, the only thing I put in my Grinder profile was my height and a clothed, neck-down pic. Almost immediately a guy I’ve seen in the local bar asked me to fuck his mouth.
That said, I can see how it can seem bigoted to be like “women don’t like me, so I guess I’ll just be with guys.”
Some people definitely see that as a ‘second best’ option, which could imply they see m/m relationships in general as less valid than m/f.