https://www.aljazeera.com/indepth/op...061234932.html
Zionism is racism and there are some black people in Israel so the tweet was relevant and related to the BLM cause.
If 100 people were told that a group that makes up 1/8th of the population of a large first world country was responsible for over 50% of all homicides in that country I reckon that the vast majority of those 100 people would be shocked, I think I am in the vast majority of people in thinking it's a surprisingly high statistic.