It feels like there's been a push towards getting people to start creating their own content. Platforms like YouTube + the Internet make it a lot easier for people to start.
Growing an audience, though, seems hard because there's not often a lot of free attention. Most of the competition is zero-sum between different content. People only have so much free time, so minutes they spend engaging with your stuff is minutes they don't spend engaging in other people's stuff.
There's a cynical viewpoint here which is something like "If you don't think you're creating Good Content, don't broadcast it! We have enough low-quality stuff as it is, out there."
I think people often want to create, though. It's one of the default responses people have if you ask them "Say you could live comfortably without needing to work. What would you do then?"
Often, though, implementation takes far more time than coming up with the initial idea. There is an asymmetry across many fields where the actual ideation is done by only a small group of people. This then requires maybe 10X as many people to actually put into practice.
Thus, if you want people to join your project (which is of course great because you came up with it), you'll need to convince other people to go with you. On the flip side, I think there's a skill worth practicing where you let go of idea ownership. Stuff is going to get done, and you're going to be doing it; whoever came up with the idea might be less important than whether or not you want the stuff to happen.
But maybe the desire for individual ideation points to something important. A really large amount of people seem to want to partake in creative endeavors.