Plot holes you could drive a bus (or an intergalactic spaceship) through

Rating: 1/10 (22 August 2017)

Major spoilers ahead.
Bought this film on DVD while on holiday as a treat. It was not a treat. I was pretty disappointed with a cliché ridden unsatisfactory film.
The film has a oft-told premise: Aliens arrive, humanity panics, what do they want? We struggle to communicate, there are misunderstandings, the aliens are not what they seem (start good, end bad or vice versa), some terrified humans attack the innocent aliens by mistake. We have seen it all before in many movies.
This one however thinks it is doing something different, something unique. The production team spent most of the DVD extra documentary congratulating themselves on how original they have been. I did not see much originality at all. There were clichés throughout - scientists squabbling about their specialities, Russians killing their experts, the inscrutable Chinese , the idiot Americans, the aliens that look like an Earth animal (in this case squid).
There was also a few plot holes where people act differently to all common sense or how we all know the world works. The military do not and have never made arbitrary decisions about diplomacy without someone from the government being involved (whatever country), and yet the soldiers (and not particularly high ranking ones) seem to be the ones in control of all decisions.
Louise the linguist discovers non linear time. She sees her daughters death in the future. She knows when it is going to be, and why, and yet we get the scene where the doctor gives her the news - but she already knows doesn't she? Why is she upset and shocked? Time paradoxes like this can ruin films.
The fact that Louise goes ahead and has her daughter knowing her fate also makes no sense. She appears to make no attempt at all to save her using gene therapy or other method, or have a different child entirely.If I was her I would have not had a relationship with Ian, the physicist at all. I suspect his genes or the combination of the two are to blame. Have a baby with someone else. Or have your own genes tested. Don't have a child at all. Having a child that is going to die a painful death before they are adult seems cruelly selfish to me.
What is the purpose of foreknowledge if it makes no difference at all. Indeed, what is "the gift". How is it going to help humanity or the Heptapods? If the Heptapods see all of time, then how come they cannot communicate with us straight away, or in 3000 years do they never bother to learn our language? Lazy.