"The Chinese are the most shi*tty people"

I have been threatened by a man. He said that the Chinese are the most sh*tty people in the world and he can’t wait to clean out all the Chinese with Brazilian gangster bodies. He was hired for a painting job by me but he did it wrong. It was supposed to be a simple dispute. Not until he clearly stated that he hated Chinese did I finally understand why his attitude towards me is like that. He thinks the Chinese are easy soft people and can be easily scammed. I reported the accident to my local police department but the officer said they can do nothing because he did it on the phone. I also reported it to DPOR and am still waiting for their response.