That is kind of a weak argument. I think lovecraft's work is a decent read, and he is influential and referenced. Still, I am not saying we should adopt his work view. JK Rowing is similar. Her books got lots of kids interested in reading and there is a good message about who you grow up to be. Again, not saying we should adopt her world views. You can pirate their works or find them second hand.
I am not sure who this guy is, or why we aren't more open to separating the work from the artist; seems to be a kind of ad hominem. If you don't want to give them money for the work you can still buy second hand or just pirate.
That's also 30 years old, old man!