Also, you're wildly overestimating what science can do. With many things relating to the human body, it's like we're in the dark ages. For example, tt wasn't that long ago that Chromium was viewed as unnecessary, but now we know that it is essential for regulation of insulin activity.
Also, in term of "breast is best", breastmilk reduces chances of SIDS. Supplementation with formula should probably be used more than it is, but if you want to have the greatest chance that your baby wakes up, use breastmilk if you can.
My wife would spend hours pumping (baby wouldn’t latch) and only produce a few ounces. We always started with that and then supplemented with formula. The kids seem fine.
On the idea of a wetnurse being “gross”, do you drink cows milk? Because that’s basically like having your own cow wetnurse. Sharing milk obviously isn’t for everyone, but don’t dismiss it offhand.
Breat feeding is associated with a (small) difference in IQ: https://onlinelibrary.wiley.com/doi/full/10.1111/apa.13139
Just search breast vs formula milk systematic review on Google scholar and you should be able to find loads of studies.
What you choose to do with that research is entirely up to you.
Another concerning thing with formula is how it’s made. For example, one brand of top shelf organic formula used a chemical known to be a neurotoxin but claim that they remove it all before the manufacturing process is complete, while a competing top brand was using palm oil as one ingredient which is know to be an irritant to newborn’s GI system. So it always felt like choosing the lesser of evils.
There are certainly people who will discourage you from formula. But you have to make your own choice for yourselves and your baby. But frankly neither choice is “bad”.