No, he doesn't mean that.
They were discussing transwomen, not transmen.
Nick Ferrari asked, "Is It transphobic to say only women can have a cervix?"
David Lammy replied: "I don't know if it's transphobic but it's not accurate, it's probably the case that trans women don't have ovaries but a cervix is something that .. I understand that a cervix is something you can have after various procedures, hormone treatments and all the rest of it."
Which is nonsense. Only a woman can have a cervix, it being the narrow tube between the womb and the vagina.
Transwomen cannot possibly have one, being male and therefore without female reproductive organs.
Mammalian biology 101.