Democrats and liberals believe there are two kinds of racism and discrimination.
“Good” racism and discrimination is when minorities can take advantage over non-minorities through affirmative action and other preferential programs and laws. Liberal minorities justify discrimination against non-minorities in the name of social justice, and people like Elizabeth Warren use this “good” racism to further her career by claiming to be a minority (American Indian).
“Bad” racism is any action by non-minorities that liberals and Democrats define as offensive including costumes and language. For example, whites in black-face or wearing MAGA hats are considered offensive and racist, no matter how innocent the intention or behavior.
The fact is that liberals and Democrats define racism according to their political agenda. There is no "social" justice, only justice, and there's no "good" or "bad" racism, just racism, and it is always bad.