There are plenty of people giving away their labour for free, which makes it harder for people who need to be able to make some money in order to support themselves.
They aren't always making passion projects. They're told unpaid labour is good for their CV/resumé, or that they're helping society (sometimes the case, but sometimes not).
Massive corporations such as Alphabet do have the resources to pay YouTubers, especially given how much tax they avoid in most countries.
