They can keep shooting their own feet all they want. I'm glad to be done with it. I thought I wouldn't manage to keep away, but Lemmy is an adequate replacement. In time, it may even come to be okay.
Same, Lemmy just seems less addictive but at the same time more enjoyable, with (relatively) friendly users and the ability to simply blacklist the posters and communities you don’t like from your feed, instead of having to lose brain cells scrolling past screeds calling parents “breeders” or cars “pedestrian crushers” that clearly indicate a lack of contact with monocot plants in the Poaceae family.
Reddit made its own competitor. There was none to really speak of, until the exodus. Enough people left that the new site was sustainable. They've created their own downfall.