If that's really true, I can understand why you have so much difficulty understanding cancel culture.
For instance, if you were inclined to believe that murdering white men over fifty is something that should be stopped, stopping the finance of such activities by declining to buy the products that murderer produces might make a lot of sense.
Likewise, in a much less silly and much, much less hypothetical scenario, if you discovered a comedian playing a popular dad and role model on a family TV show was drugging and raping women in between scenes for fun, declining to purchase or otherwise finance the conditions that enabled this actor to commit those acts might make sense also.
For me and most other people, our personal entertainment isn't the most important thing on the planet.