proposing that people have to do the killing and/or butchering of an animal in order to acquire it is not analogous to requiring that people mine raw materials, process them into everything needed to produce semiconductors, and then build there own electronics "from scratch".

No they're not perfectly analogous. But why "propose" anything? If you're Vegan why not just say "people shouldn't eat meat, carnists can get fucked"? Proposing a change in the rules of how meat should be eaten is just a reformist half measure. And the truth is you're not going to get anywhere without revolutionary activity. If you really had the power to enforce the rule that people can only eat meat if they butcher it themselves, then that would be reflective of a society in which a revolution has already happened. But we don't live in that kind of society. Nobody is going to pass that law because we live in a society run by carnists and capitalists. If you truly lived in a society where you could force the rules to be that, then you might as well just make eating meat entirely illegal at that point.