The main problem with the current alternatives is that you can't even upload a video. For example, that is the problem with this website Streambus. You can't upload a video. It's some kind of "beta signup" manual approval thing.
On Youtube, you make an account, you click the "create" button, you select the video file you want, and it uploads. It works.
Another example: have you ever tried to upload a video to peertube? Typically you make an account and then you click "create" and it says "uploads are not allowed on this instance" or something like that. As if the person making videos has any idea what that means. This is trying to use a printer and it keeps saying "PC LOAD LETTER", of course some nerd knows what that means but 99.9% of people are never going to care.
If you want an audience, allow people to upload videos to the website. This website doesn't solve that problem. Peertube doesn't solve that problem except if you somehow manage to find the https://peervideo.club instance, which is apparently the biggest english-speaking instance, but if you go to the "about this instance page", apparently "video quota" is 20GB, and "User registration allowed" has a red X next to it. What the hell does that even mean? Why is it so hard for people to make a website that makes sense to the average person? It is astonishing to me the lack of urgency there is for creating an alternative to youtube. Isn't Peertube maintained by like 4 people? Isn't this a massive global problem? Why is no one taking this seriously? Do people not understand how powerful it is to be able to see videos of things? For example, footage of war crimes or atrocities or things happening around the world? All the proposed solutions look like cutesy little hobby projects. For example, I'm sure they are great people, but honestly I don't care about "Evan" and "Kevin" or their little cartoon portraits, which is the first thing you show me when I try to create an account on Steambus. It doesn't strike me as headed in the direction of being a genuine solution to this global problem. What's going on with youtube is a nightmare and to put it bluntly, lots of people across the world are suffering and dying because of it.