Unless you are accusing the exchanges of using their own bots to manipulate the market I do not see how this makes sense, a bot is just a set of instructions about how to react to the market in the case certain circumstances happen, a bot being used by a trader is not going to magically make money, it needs to be coded with instructions that allows it to make money over the long term and most people do not know either how to code or how to trade the markets and profit from them, so I think you are exaggerating the problem and if you cannot beat the bots then you should not be trading anyway.