They will still sell the products they produce in a marketplace.

There is no rule that states they have to sell squat in a marketplace. They could, but they also couldn’t. That’s the whole point of the workers owning the means of production - the workers involved makes those deicisions, not a capitalist or bureaucratic parasite class.

But it already is, isn’t it?

So if this…

nobody’s main defining characteristic should be their gender.

…is what you really want you need to start with cis people and not transgender ones, correct?

make their gender the defining aspect of their character

The vast majority of cishet people (if not all) make their gender the defining aspect of their character - so why should trans people be any different?

Sorry… just for the record - why was there a Russian war reporter in Ukraine again? Could it perhaps have anything to do with that war Russia caused in Ukraine? Someone please jog my memory for me.