The people on that site are infuriating. I managed to spend about 60 seconds on that site before I saw someone say "racism = prejudice + power" in response to s

The people on that site are infuriating. I managed to spend about 60 seconds on that site before I saw someone say "racism = prejudice + power" in response to someone else saying you can be racist against white people. Why try to change the dictionary definition of a the word "racism" to mean "systemic racism", I wonder?