Exactly! Just like all the other hot straight guys who have an onlyfans or even the ones who do real adult porn, they know they're going to make more money if they team up with other guys compared to being with a female.
It also works the same way when straight guys become strippers in gay clubs. Of course they would much rather dance for females and have women touch and feel all over them, but they soon find out that the real money is in entertaining gay men. On camera or live in person.
But I guarantee you Nathan just like so many other popular straight guys on social media, when the camera is off, they are not seeking out other guys to be with, in a sexual way. Even if it's guys who look just like them. Plus the guys they pick for videos are people they actually know and trust, not random dudes from off the street.