Bots currently suck ass at no limit holdem and PLO. While theoretically solvable, the game trees are so enormous (many orders of magnitude larger than chess) that even quantum computers calculating every planck second wouldn't be able to find all game states before the heat death of the universe.
You don't have to do all that to make a capable bot, but that gives an idea of how complex it is. I wouldn't assume it's inevitable that bots will be crushing NLH within 10 years. Maybe they never will.
Google seems to have decent human detection these days based on mouse movements and other behavioral identity data. Those are those the captchas where you just tick a box. I don't know how easy that is to circumvent though.