I don't think this is necessarily fair. People expect guard dogs to provide protection from unknown intruders. I wont ask why you were entering peoples homes when they weren't there but if this was for a legitimate reason they either should have been there to control their dog or had their dog housed elsewhere while you had to visit.
Statistics will always trump empiricals. The one unfortunate problem is that where pitbulls have been banned, they often get renamed or mixed with other dogs to allow people to continue to have access to extremely violent dogs e.g.:
https://www.spectator.co.uk/article/american-bully-xl-dogs-should-be-banned/
The issue is that the um.. groups that like pit bulls tend to be very irresponsible, and are often violent themselves.
Anyway, there are videos out there of pit bulls literally tearing ppl apart and eating their faces. They need to be exterminated imo.
"PITBULL owners could be here" he thought, "I've never been in this neighbourhood before. There could be PITBULL owners anywhere."
