27 unarmed black men were killed by police in 2019 according to the Mapping Police Violence database. (Despite this, 53.5% of people identifying as "very liberal" estimated that 1,000 or more unarmed black men were killed. Only 15.71% correctly estimated "about 10."[1]) There are 800,000 police officers in the United States, so I am not sure you can say they generally enjoy killing unarmed black men based on a few dozen deaths a year.
This type of puerile thinking is so common, there really aught to be severe social consequences for saying this type of thing in a public forum.
A 6’6”+ unarmed man of any race could easily kill 90% of the population in a 1 on 1 encounter. We’re talking about a basic physiological reality and we have adults who can freely assert the opposite of this to the extreme detriment of society.
Having someone who thinks that simply being “unarmed” makes them a non-threat is actually a dangerous person to have around other people because they don’t have a theory of human relations that understands the role of physicality and violence and how that should be properly understood and mediated. This is someone too dangerous to operate in an office environment for example.
I don’t think that view holds up to data, for instance you’re more likely to get shot by police as an unarmed white person than black person, when adjusted for population/crime. Even ignoring this, the number of unarmed black people shot per year is usually <20, so it’s not like the problem is endemic.