When comparing copy trading to bot trading, copy trading is better than a bot, the reason is that before you can copy the trader you have the ability to veriy from the platform which I'm using the historical trading performance of the trader, the fund he/she manages, and how many people are copying his/her trade. This will help you have the opportunity to decide if you would copy or not.
I think it depends. If the trader that you copy is pro and is profitable then it's obviously better than a bot but if it isn't and a trading bot is much profitable then a bot is a better option. The only difference is a bot can be modified and we can insert our own strategy here while copying traders can't be commanded so I think I will go with the bot and the good thing about them is that you can use them for free.
If you know how to use a both and you have your own strategy, I think that you won't also do copy trading because you can believe more on your ability more than them and for you, it's fine if you will lose. You will still be proud of your self because you did your best.