There are options for you, like Floatplane and Nebula. The problem is universal - their curated content has limited appeal. The YouTube model is more attractive to people, so more people upload content to a larger audience. I have no confidence that a paid-only platform could reach 1/100th of the traffic YouTube gets in a similar timespan.

As a customer you really just have to ask yourself what you're willing to give up when paying for a YouTube analog. Content creators aren't going to engage in a mass exodus unless they're convinced their audience will follow them to other platforms.