This always makes me think. Cockroaches don’t bite, are not venomous, basically can’t do us any harm. I’m not afraid of wild dogs, spiders, tarantulas, scorpions, snakes, wolves, hyenas, wild hogs, bears (encountered them all) but I might actually scream if I get surprised by a cockroach.
I think this collective fear of cockroaches that we have cannot be without reason and must have an evolutionary reason.
The fast movement and lack of sight is what’s scary about them, snakes tarantulas will move away from you and do it slowly, cockroach will run in any direction at full speed when startled unless you explicitly startle them with large thud near them, otherwise they might dash full speed towards you
Also social upbringing making them out to be some great threat and fact we’re way more common to see them than the other actually dangerous creatures