Even then, some of us cannot realistically go vegan/vegetarian (legume allergies, t2d, do not respond well to grains). Also, farming works better with and can use better integration of animal and plant farming in support of each other. Much more than the large mono-crop farms we have now. It's about supporting an ecosystem, not force feeding humanity as much mutant grain and legumes as possible.

I do think that all options should be on the table, and moving the needle is an overall good. For the upper-mid US, a couple more nuclear power plants. For the mid-west, more wind. Southwest, more solar. Continued support for electric tax credits. Expansion of efforts to increase forests in terms of trade policy. Reducing/elimination of farming subsidies to large mono-crop farming, especially where using patented seed. Nutrition policy based on science, not religion.

Reduction of pollution as a primary focus would help a lot as well. Abusing pollution and climate change to push a political agenda brings out a lot of resistance. It also shows that most of those screaming the loudest really don't care as much about it as they claim.