And only recently did scientists figure out how to high jack the endocrine system for weight loss and not without plenty of side effects.

So in order for a baby to come to term, it must be exposed to different hormones , at different levels, at different times that come from the mother.

We can't produce all of those hormones.
We can't currently determine all of hormone needs of a fetus.

We can grow an embreyo in a container for quite a few weeks. Maybe even a few months.

Sure, you can attach it to a roomba with temperature control.

But that's not the same as being able to grow a baby to term.

I've understood it as test tube babies being mocked because of the idea that someone is brewing up their own genetically modified baby, like a eugenicist's wet dream. Think GATTACA.

letting only the rich use them.

Main selling point would be how much easier it'd be to disown their loser offspring.