Should straight men HAVE to sleep with transwomen?

[MandalaYogaTapestry]

Apologies if this has been raised and discussed but it only occurred to me now and I am genuinely curious.

So transactivists insist that lesbians should accept transwomen (most of whom still have male bodies and male organs) as sexual partners and that refusing to have sex with a dick is hate and bigotry.

On the same grounds, do transwomen also insist that heterosexual males should be fine about having relationships with them as they would with biological females, otherwise it's genitalia fetish?

Is this happening?

I think maybe women do take it too personally and get upset about it though. Maybe they should just take the attitude os hetero blokes "would I sleep with a trans woman?" "no because they're XY" (edited for mumsnet).
"next question".
As a hetero woman I do wonder why lesbians aren't a bit more thick skinned on this one. I suppose it does mean abandoning the LGBT etc community as being your community which is what the Pride protest was about though and realising that the rest of the group don't view lesbians as equals.