Most soybeans are fed to animals and only a tiny amount of soybean calories are converted into meat. So a soybean subsidy scales better in the meat industry and makes their product disproportionally cheaper.

and unfortunatly cows raised on soybeans yields trash quality meat with high amounts of omega 6 vs 3.

I checked out one resource, and they say that there it's "pea protein isolate" mostly.

Whatever the case (I'm sure there are soy patties as well), I think as long as they are not pricing it cheaper than beef, it won't gain widespread adoption. Animals are cute and all but people need an incentive that they can directly feel.