HP Lovecraft was more a clinical xenophobe and expressed that in his writings. He was afraid of different races, but he was also deadly afraid of scientific advancement and even the color indigo. He also didn't fund terrible politicians or get into feuds on twitter. You also don't see terrible people on twitter using his writings to justify their beliefs.
JK Rowling is actively funding and bragging about making other people's lives worse.
Construction companies were advertising the prison complexes they can build at the most recent Border Patrol Expo in Phoenix, AZ this year. There was also a company advertising crematoriums.