Learning about trading on youtube is different from learning about, say, Python on youtube. If a video on programming is incorrect, your program doesn't work. If a video on equity trading is incorrect, the author of the video can take all your money.
Video views, upvotes and subscribers can all be purchased. If you have profitable trading strategy that reaps newbies who implement a bad algorithm that you publish in a public video, then you have created a perpetual motion machine.
Here's a search for "how to win slots" on youtube: https://www.youtube.com/results?search_query=how+to+win+slot... Thousands of results, millions of views each. Every video is either fake or wrong, by definition. These videos make money for the authors, and the casinos, by taking it from the marks dumb enough to watch and believe them.
It's true there are risks associated with trading. But keep track of the money you have at risk and there is no reason not to have a go.
I know more than enough people who have made consistent returns doing algorithmic trading in under-serviced market segments.