I think it is worth at least a few hours of every person’s time to help people during a war and humanitarian crisis.
I don’t think this is true, and I don’t see an a priori reason to expect cause prioritization research to result in that conclusion. I also find it a little weird how often people make this sort of generalized argument for focusing on this particular conflict, when such a generalized statement should apply equally well to many more conflicts that are much more neglected and lower salience but where people rarely make this sort of argument (it feels like some sort of selective invocation of a generalizable principle).
Generally disagree, because the meat eaters don’t get anything out of this agreement. “We’ll both agree to eat beef but not poultry” doesn’t benefit the meat eater. The one major possible exception imho is people in relationships – I could image a couple where one person is vegan and the other is a meat eater where they decide both doing this is a pareto-improvement.