Another Idiot Plot...sad addition to the Alien universe

Rating: 3/10 (24 August 2017)

I'm not going to bother going through all the instances of scientific idiocy; many, many reviewers have already done an excellent job of pointing them out. And lord knows there were a lot of them.
Many reviewers also point out, in various spirited ways, that the characters are dumber than rocks, but I'm going to chime in on this point: Can no script writer manage to create a plot that doesn't depend almost entirely on characters doing moronic things? It's a good thing I didn't indulge in as many face palms as I was inclined to, or I would've ended up with brain damage and now be as dumb as the pea brains in this movie.
One question I didn't see in the 15 or so reviews I read: did anyone else get tired of hearing the first 9 notes of the Star Trek theme --over & over & over, & many more overs, throughout the movie? ? Did they put it in as a subliminal (actually, overt) attempt to get trekkies to love-love-love this turkey?
We get a ship of white folks with 1 token black guy, 1 token Oriental; I kept wondering if the captain (the black guy) would be the first one killed. And why the heck did they have Idris Elba do a ghett-toe accent, when most everybody else has accents from the British Isles (where he's from)??
Points to ponder: -Why does an android need (or want) to bleach his hair? And David even says at one point that he doesn't understand what it means to"want." But he apparently "wants" to become a blonde. If it was meant as a sideways sort of nod to Jamie Lee Curtis' hilarious mustache bleaching in "A Fish Called Wanda," it missed. -a space age med pod that's sex-limited (i.e. would treat only men)?? -"Smells fine to me" is not exactly a reliable way to determine alien air safety. -shouldn't space weapons be more advanced than flame throwers, BB pistols (apparently; they weren't any more effective than BBs), & a pickaxe?
Sooooo glad I got this at the library & didn't pay any money for it!