I'm not aware that pork production results in more shit per pound of meat produced than any other. Its all an unsustainable mess. Just like driving our F150's and SUVs. Just like cruises and international trips. Just like insisting one's home temperature be within half a degree of perfect.
I am almost a vegetarian - I have a meal with meat when I eat out maybe 3 or 4 times A MONTH. And an occasional turkey sandwich at home, maybe 4 a month at most (a couple of thin slices). Other than that I am meatless. For humanitarian and environmental reasons.
Maybe I've had 3 pork dishes when eating out in the last 2 YEARS (and none at home). I don't eat bacon.
I'm not perfect, but I try. I haven't driven for nearly 2 years, nor taxi'd nor Ubered, just an occasional bus trip (I do have a license and a car and up-to-date registration and plenty of money, it's not that I can't or shouldn't other than environmental reasons).
Most horrifyingly of all, I'm sure, I've never owned a dog, sure would like one, I think of my childhood dog several times a day, but I read that the environmental footprint of a medium-sized dog is the same as driving an SUV. I can't justify that in my own mind. And the vets bills that should instead be going to worthy causes. Like I gave my farm away in 2016 (full disclosure: I got a charitable gift annuity in return, so after figuring the statistical benefit of an annuity and the tax savings, I only gave away an estimated net of $125,000. But I do try. I really do. )