This part sounds like you are going through a rough patch. Like you are feeling down, not sure why, and are digging around for reasons.
What you are saying is legit. What you are feeling is legit. But, it would be worth doing some deep chill soul-searching to figure out if these really are the reasons. Maybe you need a hike in the woods. Maybe you want a job better mission behind it. Maybe I'm full of shit.
Either way, best to laugh at cringey demos. Learn how to use AI. What is good for and what it's not. Use it or don't. Just build stuff people need either way.