This category(?) seems to be relatively new and more of an American thing.
The greatest male pornstars of the past 50+ years have all done MWM and/or dp:
John Holmes, Rocco, Peter, Dredd, Ian, Steve Holmes, Zenza, Chris Charming, Vic de Mille, Franco Roccaforte, Marc Ashley, Billy Glide, Dave Hardman, Mike Ranger, Kevin James, Jake Steed, Ray Victory, Fausto Moreno, Scott Lyons, Backey, Frank Major, James Brossman and Logan Long just to name a few.
I remember being surprised that so many dudes, in and out of porn, think MWM is ‘gay’.
I’ve also noticed a number of them seem to have the smaller dicks in the industry. Not all of course.
I don’t think it automatically makes MWM guys gay or non MWM guys homophobic.
Some straight men just don’t want another man’s dick near him.
It’s the judgment and name calling I hate.