Too bad...
There are several studios out there who produce "straight" sex videos, but only to better emphasize on the dude in action :
Most well-known is C0rbin Fish€r's "Am@teur C0llege Sex" collection (where this GIF was from)
Another well-known series are "H0t Guys Fuck" (by GayH00pla)
J@ke Cruis€'s "SG4GE" (Str@ight Guys for G@y Eyes) collection...
. . . .
To name a few...
I think this type of porn should be allowed. Watching guys fucking chicks is a sexual fantasy just like any other : big dicked men, black men, water sports (piss), young twinks, BDSM...
M.