Why do blacks accuse white people of racism all the time?

-I mean, slavery ended in the 1870's, that's only four to five generations ago

-after slavery whites killed blacks in the thousands because they were set free

- after slavery, though blacks couldn't read, write or do math because it was illegal during slavery at least they were "free"

- blacks weren't allowed to vote

- blacks were subjected to Jim Crow laws which meant they were separated from whites in every way including education and employment pay

-most blacks in the early 1900's had to have their kids work with them in whatever job they could fine rather than going to school because the pay was so low for them

- true integration into the American work place didn't take place unit the late 70's

- it wasn't until the 50's that blacks were integrated into schools, and even then south states withdrew financial support for schools that allowed blacks in the school

- over 2,000 black males alone have been killed by police since 1990

-every day on social media whites call for blacks to be returned to Africa

- even banks, such as Bank of America, have taken advantage of blacks (and hispanics) by over charging them in interest, mortgage rates and checking accounts.

SO why do blacks think they are subjected to racism all the time? I don't get it?