Aside from personal preference, I would think there are two main reasons to consider replacing animal meat protein with plant protein. Because it could be healthier for the planet, and because it could be healthier for human consumption.

I’m not sure we’ve proven either one is definitely true. I think the evidence leans towards plant farming being less impactful to the planet on a fundamental conservation of energy basis, but farming at scale the ways that humans tend to do it causes a lot of problems with soil erosion and pesticide contamination which are yet to be overcome, but likely easier to solve than a similar problem of growing enough grass and corn for the cows.

On the other hand, I’m a lot less convinced that eating these highly processed plant proteins (to get them into a desirable form for mass consumption) is necessarily a de facto healthier way for humans to get their protein.

I just tend to be wary of IPO-scale manufacturing of hyped/trendy processed foods.