I think the biggest reason people have problems with passive income is because for almost any source of passive income, you have to be active in the beginning. It's not at all passive in the beginning.
For example, with the bot, if you REALLY want to make a profit, you have to have a reasonable understanding of how bots work, the internals of your particular bot, and perhaps more importantly, the edge cases where the bot may make bad decisions. You don't need to be an expert, but you have to be reasonably knowledgeable and up-to-date
I agree, same with network marketing. I takes time to learn the skills so you also have to be patient. Also maybe it helps to be clear in your mind what you want exactly and what one's definition of passive income is.