I think in general some externalities should be banned at the source, i.e macerating male chicks en masse should just be illegal(I'm not a huge animal rights pe

I think in general some externalities should be banned at the source, i.e macerating male chicks en masse should just be illegal(I'm not a huge animal rights person in general, but this one seems clear cut to me). Whereas others that can't just stop overnight(say carbon emissions) should be taxed at the source to phase them out naturally over time. I think prosecuting the consumer directly is too much of a slippery slope to go down. Because like it or not almost everything we do in modern society has some pretty nasty externalities attached that are also so far removed from the consumer that they can't reasonably be expected to factor it into their decisions.