In some cases bot are very smart regardless of the volatility of the market. Trading with both is just like trading smarter because you’ve got no reason to stress yourself.
Humans will never be replaced by bots. I don't think if bot is really smart regardless of volatility. My understanding of volatility is that trading with high volatility coins increases your chances of hitting your stop loss. However, if you trade with low volatility, your stop loss is unlikely to be reached. Volatility is something that all traders understand.
The only one advantage of bot to humans is that there are no emotions at all when they trade. Meaning, they always stick to their plan no matter what happen. Unlike humans, if they get controlled by their emotions they keep changing their trading plans and that's the main reason why they don't succeed in trading.