chicken
You're sort of half right. You agree, presumably, that a transwoman with a penis can be rejected by lesbians, and should be, because lesbianism rejects penises?
It may interest you to know that 85% of transwomen retain their penis.
On that basis alone, you can, presumably, completely understand where lesbians are coming from. They do not do 'lady dicks', or 'female penises', as they are being coerced to. Neither are penises just 'big clitorises'. And they are not 'just like a strap on', either.
Where you and us might differ, is that even if someone is post op, it doesn't make them a woman.
Women smell, feel, look and act completely differently to men. Every part of their physiology is totally different.
Lesbians like women. Not men whose penis has been operated on. It's that simple.
Men, identifying as women, who try and coerce lesbians into sex, by guilt tripping them with accusations of transphobia, are supporting rape culture.