> You also didn't specify what country the "average person" is from, whose footprint you're comparing a pet to. Either way, it's not that big - barely 1.5% of the human population in terms of impact.
speaking for "First-world" countries mostly. I live in France, there is as many pets as inhabitants roughly (63M-66M), figures say 21M of cats+dogs, other European countries are comparable. I compare pets footprint to their owners' basically, and a 10% larger footprint in developed countries is a problem, even 3%, even 1% is something to work on, there is always a start if we want to clean up the planet
About your 1. and 2.
Not specially, I could argue the exact opposite points in return, I'm just pragmatic about it. I'd also want to address the cigarette smoking problem more seriously (my mom died from that), to ban a bunch of cosmetics, all of insecticides, plastic wrappings... Pets seem like an easy lever to deal with, 'seem' because I understand your reaction, people get attached to them, they react with passion more than reason about it, but they must understand the consequences: ecosystem and pollution damages, neutering/spaying doesn't seem enforced in Brasil like showed my previous 'impact on ecosystem' link. Of course, we really can't put every pet owner in the same bag, I'm mostly targeting the way pets become a trend, a norm, e;g. the Shiba trend, the way pets have become so "normal", so present everywhere, internet, TV, young generation are kinda educated with that.. I mean, they wouldn't really question their existence later or their environment footprint, so I'm just here trying to have a critical, in a positive sense, view
"if you suggest to people they have to put Fido to sleep right now to save the planet."
I didn't say that either, I said "cut down"
You were right about arguing against my initial argument about "pets eating one fifth of the world's meat and fish" [https://en.wikipedia.org/wiki/Pet_food#Impact] but I hope you understand all the other "invisible" pollution cost for processing, delivering those food, and all the other pets services pollution costs (vet, beauty, ...). So my point stands with their significant environmental impact, even if pets were fed insect-based food like they suggest in the wikipedia link, there would still be a significant background environmental impact