There are already specific plugins for Chrome (No Coin) and Firefox (CoinBlock 1.0) to block coin-hive. The adblockers will soon also block the js coin miners by default. Don't really see coin-hive having much traction long term consumers will not stand for it.
11% of web users run ad blockers. Enough to pay attention to but not enough to dramatically change anything. Source
https://pagefair.com/blog/2017/adblockreport/Others have noted cases where users may voluntarily run it, to earn reward points, etc. Smarter sites will likely limit CPU usage to <100% so users don't find the page annoying and close it.
It is an interesting development, though we are in the early stages still.