Look, whatever dude. Believe in a flat earth or whatever you like.
Still, The fetus‘ cells are not cells of the mother. The few molecules of the egg cell quickly dilute in a sea of newly synthesized molecules by the metabolism of the zygote and its repeating cell Division cycle.
You can keep repeating „because the building blocks are provided by the mother“. But that does not make the cells any more their mothers cells than, again, you being a cow when consuming milk. Your logic does Not make sense.
Its similar (not like) recycling. If I melt down metal from old computers to create a new computer. Then we have actually new components, a new computer. Its Not made up of the old Computer in a conventional sense. Sure on the atomic level its mostly the same atoms, but Talking about inheritance on that level brings the discussion to a completely ridiculous level.
Not sure how you justify any other view on this. Certainly not on the grounds of natural sciences or logic.
Again, I think you are clueless. I agree there is much more nuance to the whole process with hormone gradients and things, but the embryo is its own thing, basically wrapped in a construction site and supplied with building blocks, no matter how hard you wish for the opposite.
And yes, that is pretty much comparable to digestion in a humans that are out of the uterus in the sense that they get stuff to break down, derive building blocks and build up again. The mother takes over the digestion part for embryos, but there is not more magic to this than that.