This is probably gonna sound a bit dystopian, but would you eat beef if we eliminated suffering with CRISPR? I don't get to talk to a lot of vegetarians/vegans so honest question.
I don't know. My moral intitutions and reasoning fall apart if you remove suffering from the equation. By that logic it would also be okay to farm and eat humans if we eliminated their ability to suffer using CRISPR. What would you think of that? I don't even know where to start.
If you invent an animal that is designed to grow muscle tissue for harvesting and isn't sentient nor suffers, you've solved lab meat, in an organic container. While many vegns grew a distaste for meat, that would indeed satisfy the vegan principle of eliminating suffering.
However, the reason farm animals are so cheap is because they are conscious, autonomous meat machines that you can order around easily.
* You do enter into another question here about whether brain dead or deeply disabled people are ethical to be eaten. Most people would say no.
I would, but I think the premise is unrealistic. The term “suffering” itself is pretty vague and undefined. You might be thinking of just removing pain receptors in the brain or something, but there are many more sources of suffering than just pain.