You can argue the images are not worth his demand amounts, that is part of every copyright case. But you cannot successfully argue a person has made too much money from enforcement.
You do know the name of this website, right? Extortion Letter Info.com That was a nice speech on behalf of the copyright troll you choose to defend. I speak in favor of the victims of this scam photographers take advantage of. Are they within there rights as copyright holders. Yes they are. I'm not taking anything away from that. The best photographers in the world don't sit in their pajamas doing reverse image searches looking for hits for their images so they can send demand letters to cash in. No, they live on their actual work as a photographers. The copyright troll isn't in that class. They take pictures of a parked car or a garbage can, license to a newspaper for $150 dollars or so. But wait there more. They can send demand letters for $8,000 dollars and get a settlement for half of that or even less and still make good. So don't put these trolls in a nobility class of honest aw shucks photographers just protecting their rights. It doesn't wash here!