This is the ultimate, predictably liberal climate change lie, mankind is ruining the planet, we should all eat tofu, save the snail darters at the expense of human life, etc., etc. movie. Those who concocted this virtue signaling, pontificating propaganda failed to explain what happens to humans after the aliens depart -- having either destroyed or permanently disabled everything from public transportation to indoor plumbing. Assuming they didn't relieve us of our firearms and they returned all the animals they stole and somehow plant life survived the little metal horseflies they unleashed on the planet and the little metal horseflies stayed dead, maybe the human race would have a chance to survive, but probably not. An absolutely perfect example of the kind of delusional and both intellectually and emotionally retarded propaganda that liberals spend and make millions of dollars foisting on the public. Thank God not all of us are so stupid as to take any of this nonsense seriously, and just enjoy the talent of the folks who write, act, produce, provide the CGI, etc., etc. The problem is that this kind of propaganda actually influences the thinking of the intellectually challenged, and those include people who actually get to vote when they really shouldn't be allowed outdoors without adult supervision. Liked the movie, disliked the message. Quite the conundrum. If you're not bought into the climate change hoax and identity politics hate being preached to you by self aggrandizing, virtue signaling liberal poltroons, this movie will definitely offend you. If you're a vacuous sheep, knock yourself out.