I hate these games and the sooner they go away, the better. I know that disliking something common does not make me intrinsically interesting, but here are my reasons for disliking.
Skill-less
Having a game as free of chance and a closest true test of skill is a better game. If you can easily be killed by someone who happened to have better loot, even though you are a better player makes it a failed concept.
Randomness
Similar to the skill problem, loot drops are random, other players drop in random places. Randomness keeps bad players in because they win more often than they should, and more skillful players win less than they should.
Too Volatile
First it was H1Z1, then PUBG, then Fortnite. They get very popular then when the new one comes along, the other one more or less drops off the face of the earth. Each one has enough differences to be seen as a unique game, but only just barely.