Homophobia and transphobia are interconnected and stem from the same root. They arise from authoritarian attitudes that believe in rigid gender binaries and actions taken to try to enforce that on others.
Given people who are sex realist and GC don’t believe in rigid gender binaries, by your words, it’s not us who are homophobic and transphobic. It’s not us saying gender binaries make someone a woman, it’s not us saying gender binaries make someone a woman and therefore a lesbian, it’s you. Your rigid gender binaries, and men meeting them, are what defines women and lesbians according to you. The rest of us deal with the reality of sex and same sex attraction.
You, and others, are engaged in a process of encouraging vulnerable minorities to turn against each other. We know this, we're not stupid, we have read the 'divide and conquer' tactics, we know the fraudulent narratives that you spin and regurgitate on boards like this, and we stand united against the hate.
You can’t even define the minorities you seek to represent or defend. To you, “minorities” includes heterosexual men. Your fraudulent narrative is that you claim to care about anyone other than the rights of these men.