>>68745512They stream, they get paid.
Your main issue lies in thinking that because they earn well then that means they should work a lot, as if in this world jobs where you do little and pay a lot do not exist.
If you are this mad, stop watching those who you think do not stream enough and concentrate on those who do.
You are not their boss, and they don't need to carter to you. Being a stream is not that far from on-call jobs with the difference that instead of the company calling you when to work it's up to the streamer when to work.