Yes hilarious I'm sure but being attracted to a muscular woman with a strap-on doesn't make you gay.
Just things to think about: prostate massage, check-ups etc mean to go through the anus. It is also the best way to reach our prostate say what you will about straight v. gay, but a man's anatomy is built for some anal access
Also one is attracted to strong females sometimes with a strap-on as for some it means even more dominance. Put a big gay dude and one is not attracted at all, because they're not attracted to masculinity, they're attracted to absolute female strength.
Many people worried about that, but they're not attracted to just the strap-on, it's a really hot WOMAN with a dick/strap-on which is essentially a straight attraction as you're into the femininity rather than the masculinity.
There's a few gay guys I know not at all into muscular women or super-passable transsexuals because they look like a woman when they're attracted to the look of a man. It's hard to fully represent, but it is in a realm of gender and sexuality that most do not accept.