Some of them are really succesful. Many people care. Others don’t.
Here the current Steam charts. Many indie games, some few with really low specs. Banana only needs 30MB RAM. Seems to be a great game. Hostly now, why are 50k people playing that “game” currently?
But back on topic: Yes, AAA games are more succesfull and earn much more money, but claiming “no one cares about indie” is stupid, when so many people play games like Rust, Stardew Valley, Prison Architect, Terraria, RimWorld, Valheim, The Forest, …