Oh, I don't think pigeons spread disease. I just think city pigeons are filthy and poop all over everything. Frequently mutilated, missing toes or whole limbs. Also frequently run over by cars.
I like the kind of wild pigeons you can see outside cities. I reserve my contempt for city pigeons, which I like to call "flying rats".
I also like crows, but there aren't any (that I can see) where I live. I've seen them in other locations, of course.