I dont think you understand the industrial meat production market. Or economic boycotts in general. But yes, buying Boston crisp lettuce is ok and doesn’t add anything to the industrial meat complex.

There is no way to avoid globalization and thus everything you buy supports companies that have their finger in your choosen protest but by not actively participating you reduce demand of any given sector.

For instance, every pound of meat I buy from a local farmer is directly equal to one less pound of meat that needs to be raised in a commercial meat facility, assuming I choose to keep eating meat. If enough people oppose commercial meat and take the same action demand is reduced, supply is reduced and less animals are raised in industrial meat.

Likewise every piece of paper that is used is a tree that is cut down (obviously not a whole tree but you get the point).

That is the basis of economic protest and boycotts that have been shown to work. This is not something like buying gasoline which is a requirement to participate in society with no viable affordable option otherwise. This is an extra couple bucks for a ream of hemp paper.

It is the same as screaming about human right violations and then buying apple products. There is enough competition that you don’t need to actively support any specific vendor to participate in society.

Vote with your dollars. Given the dysfunctional state of politics it really is almost the only agency you have to voice you opinion.