BS. I felt more unsafe in London that I ever did in Thailand, ANYWHERE.
No country is "safe" but Thailand is high on the safe country list.
In my real world experience, no foreigner that is polite and doesn't treat the Thais badly is at risk.
I've seen only 1 instance of many Thais beating up a farang, but the one I saw in a gogo was well deserved by a thug farang that was abusing the girls.