Sounds like you’ve never had the misfortune of being somewhere with a roach infestation.
People can get sick from roach feces from just a few roaches, especially if you have asthma; having 1000 would be really bad
Ive dealt with a few though, its not really as bad or as hard as most people think. Its just about being thorough and sustained, you arent going to get them all in one hit. It just takes a few months of regularly repeating the basics of bombing, baits and spray.
its not really as bad or as hard as most people think.
It just takes a few months
I would consider anything that takes months to fix to be pretty bad.