It could be viable for short term but it will never be reliable in the long run.
When market makers change their games, the market trends will be changed and if you fail to exit your position, you will lose money.
I honestly never tried these copy trading feature by simply copying of what other traders did, I wonder whether it really gives meaningful profits, but I just concerned with the fact that if we just set our own money to automatically follows what the other party decisions are doesn't that mean we could be used as a tool for them to make exit liquidity i think it should be of concern.
They are lazy to learn and to filter market to find chances for trading so they choose the easy way, relying on Copy Trade from someone to get profit and to save their time. I am not sure how many lazy and unknowledgeable traders can get profit from Copy Trade but I myself see it very risky.
If novice traders don't want to develop their own trading skills, maybe copying other people's trades is their quick way to make instant profits.
They want profit but don't want to learn, don't want to pay money for learning from good trading courses or books so they have to pay more expensive cost for their loss in the market. It is more painful than spending money to enrich their trading knowledge but it's their choices, like you said, and we can not change their minds.