"I promise your art will be meaningful to someone if it comes from your heart."
I hope you're right about that.
The problem isn't just AI. It's the feeling that all the other artists in the world have either already created everything worth creating, and that you'll never be as good as them, so why bother trying? The Internet has made this problem worse by making it so easy to find other people's creations. You think you have a unique idea, then you do your research and find out it isn't unique, and you decide it isn't worth it.
People will still make art for personal reasons or please family members or close friends. But if you tell people that if they work hard enough they can become the next Pablo Picasso or the next Roy Lichtenstein, the odds are high they will either doubt you now, or they'll doubt you years down the road.