My first gripe actually is with the mechanics of time travel involved. If they were worried about stuff like paradoxes then this is one of the "single timeline" sort of universes, but then they kind of chicken out and make it a multiverse were you can actually change the future so the entire premise of sending millions of people to get eaten in the future makes no sense. Just send back samples and all the info relating the location and we could have found the ship and blew it up.
But what really twisted my panties is that the last guys coming back form the future right before the gate collapsed aren't even debriefed, apparently no one cares to know what happened. "Oh, they made this toxin and told us to mass produce it and kill the aliens? We have no time for that now, you go ahead in your kitchen." Preposterous. Even if the American government was that dumb the next step would be going to the Russian embassy, that's a nightmare in itself but still better than doing nothing. But didn't even bother to make a tweet about it, off they went, the only people who knew anything about the threat - to the unexplored Russian tundra with half a dozen idiots without so much as leaving behind a sample and a map with a lawyer. C'mon, I can suspend my alien disbelief enough to buy ancient carnivore alien molerats but this is too much human dumb.
But what really twisted my panties is that the last guys coming back form the future right before the gate collapsed aren't even debriefed, apparently no one cares to know what happened. "Oh, they made this toxin and told us to mass produce it and kill the aliens? We have no time for that now, you go ahead in your kitchen." Preposterous. Even if the American government was that dumb the next step would be going to the Russian embassy, that's a nightmare in itself but still better than doing nothing. But didn't even bother to make a tweet about it, off they went, the only people who knew anything about the threat - to the unexplored Russian tundra with half a dozen idiots without so much as leaving behind a sample and a map with a lawyer. C'mon, I can suspend my alien disbelief enough to buy ancient carnivore alien molerats but this is too much human dumb.