Very good points here and I much appreciate your honesty and humility. You don't have to be so harsh on yourself though - comedy or creativity are only two ways of playing the Youtube game. I think one doesn't have to limit himself by thinking they do not match very specific standards.
On the contrary, my feelings are that Youtube is quite saturated with copycat attempts with little effort or imagination. You don't have to be like Taylor or Shawn and focus on comedy or vlogs (sometimes unsuccessfully), there are so many different ways of sharing a park experience: insight, polished styles of all sorts, educated opinions, interviews, music videos, focusing on vintage stuff... Exploring other concepts are the ways to go imo.
I very much understand your reservations about doing Youtube stuff, and frankly, you don't have to start a channel if you don't want to (of course). But then again let's think out of the box - you don't absolutely have to do your own individual channel to join the Youtube game! Maybe doing some cameos other channels, sharing feedback or pictures to other channels is another way to be part of this community... It is a sad but true fact that Coaster Youtubing has been too self-centered, but that doesn't mean this can't change
