What there almost certainly is room for is a site (or sites) that curate videos in order to filter out the content you and people like you don't want to see. Essentially you'd pay (directly perhaps, or through some sort of affiliate scheme if Youtube offers one) for someone to trawl through the rubbish to find things that match your criteria. There'd be a lot of risk - Youtubers can limit playback of their videos to only on Youtube so content could vanish, and you'd be relying on Youtube for revenue, plus it'd be something Youtube themselves could quite easily introduce as a feature on their site. Still, there's almost certainly a market for it.
An alternative could do things better, but I'd expect YouTube is still clearly good enough that it would have a hard time getting users.
I never really used YT regularly, just looking up the latest Scott Manley Kerbal video form time to time, but my kids were subscribing to channels so I started to as well. Now I'm hooked and have subscribed to some great channels like Nerdwriter, Primitive Technology and Close to Truth. For me, Youtube has never been better.