They're cool. USA just has a crappy color scheme compared to some other countries. I love my red white and blue, but throw them all together on a singlet and it can look kinda gross. The Kenya kits are pretty sweet.
As for the women's uniform, I still haven't seen a Nike runner say anything negative about it. And if it really bothers them, there will be like 5 alternative options for the athletes to wear. Trim your pubes or wear the bikini bottoms. Nike isn't holding a gun to their runner's heads forcing them to wear this.
"Uniform unveiling" is just for marketing, and I'm sure this is exactly the reaction they were hoping for. The real irony here is that lots of women runners on twitter have a very negative response to how "revealing" the women's uniform is, but I GUARANTEE Sha'Carri will rock this with confidence and T&F fans on twitter will go absolutely crazy over it.