No it's not. That's lazy non-thinking false equivalence and I'm sick of hearing people spouting it and thinking it's an argument.
Equal love and marriage rights for gay people took absolutely nothing away from straight people. It made no difference. Being gay requires no external validation. It is entirely innate and does not force any beliefs on anyone else. If I go into my office tomorrow and everyone has become gay, I won't even know if they don't tell me. It requires no lies and no absurdity to be accepted.
But forcing the lie upon us that sex is not real, and woman is a feeling, is not innate and affects everyone. Unlike being gay, it requires everyone around you to reflect and absorb something that is demonstrably untrue, because unlike being gay, it depends upon external validation. Women must lose their safe spaces in its name, their sporting opportunities, the very designated word that covers them. They must abandon their faith, overcome their trauma and relinquish their dignity and safety, even though a fair option - third spaces - exists. And they must do it with a smile lest they be accused of hatred and bigotry and phobia, like you and the other woman who was trying to coerce us earlier.
At its worst, it is actually homophobic itself. Because of who deny sex is real must also deny that same sex attraction is real, and therefore lesbians must submit to penis or they are, guess what, bigots and transphobes.
It is nothing like homophobia and in fact, its logical conclusion is itself homophobic.
So don't try that one on us.