I don’t know your kitties; but, personally, I don’t like any of ‘em in my garden or poopin’ in my yard. I don’t shout it to everyone, but I figure my yard is MINE, and I don’t want others cats in it any more than I want others dogs in it.
Like I said, we’re in a very rural area (hilly, woods). I never see cat or dog poop in the yard & my neighbor’s kitties are always in our yard. What I do see is deer poop!
But I do understand what you’re saying. When we lived in town we were annoyed by people walking their dogs & not scooping. Kitties didn’t go out there - too close to busy streets.