Vegan

Like, we essentially can't do anything with animals with that...

Yes. That's the point. Animals are sapient beings with rights, not objects to "do things with".

That being said, I recognize how far out of the Overton Window that attitude is.

Positive thought: if cultured meat goes mainstream, I expect there will be demand for "ethically sourced" cell lines - or some ad campaign will use it as a selling point - and shift the idea of not exploiting animals just a tiny bit closer to the mainstream :)