None of those are systemic causes. Those are all cases of individual prejudice or racism adding up to make a statistical significance. Calling this systemic racism is a good way of how to never solve the actual problem.
Most of the examples were about police targeting black people disproportionately compared to other races concluding that is because of systemic racism. Is there a law that compels police officers to behave in such a way? The answer is none. Therefore it can't be systemic. The targeting comes from individual decisions by individual officers. Whether this is from prejudice or bad experience or plain racism is unknown. For that you would have to divide individuals officers into buckets by their race in see the statics for each bucket. For example do black officers also arrest disproportionate number of black people? You would need all the combinations from different buckets to get a sense of underlying reasons.
What if a certain group of laws (say drug laws) was created specifically so police could target certain minorities? There isn't any particular motivation in the law to arrest more black people for marijuana use, but despite similar usage by race (2-4% difference https://www.brookings.edu/blog/brookings-now/2017/08/11/char...) arrests for Blacks happen at 3-6 times Whites. There's lots to suggest the war on drugs is racially motivated, but it criminalizes drug use and possession, not race (https://en.wikipedia.org/wiki/Race_and_the_war_on_drugs)
>What if a certain group of laws (say drug laws) was created specifically so police could target certain minorities?
Could you point to such a law or even better cite a paragraph from such a law where you feel it targets certain minorities? How do police officers from minority background do their job?
Could you provide a link to a law that requires harsher sentencing for black people (specific paragraph would be appreciated)? Do you also have statistics on how harsh judges from different races are towards black people when sentencing?
This reminds me of the debate between micro evolution and macro evolution. Nobody is confused that often these disparate outcomes are the cumulative effect of the decisions of many biased decisions by people inside the systems. It's still systemic racism because the outcome of all those peoples behavior is a system that discriminates. No racist intention needs to be spelled out in any rule or law for systemic racism to exist.
