You are painfully unaware of the difference between being a Youtube video creator and being a streamer. Mr. Beast is not a streamer. He is a packaged video creator. PewDiePie is a reaction video creator who occasionally streams. They are not what people think of when they think of streamers.

To be a professional streamer usually takes a combination of talent and concentration that most people simply don't have. But to say that you can't become one? LOL.

The AVERAGE millionaire streamer on twitch is so painfully unedited that they end up getting banned a couple times a year for saying stupid things live on air. Twitch and their sponsors practically THROW money at them to spend an hour or two to sponsor content. There's an entire backend bounty system which is only available to partners which will pay you based on your audience size. I've seen a guy with 3K viewers get a $30K check for 3 hours worth of sponsored content.