Also building online communities is incredibly difficult and resource heavy, seeing that we can barely get enough funding for teachers to run their classrooms appropriately would this be the best use of taxpayers money?
Think about why this would be incredibly difficult and resource heavy? The US social media site doesn't have to try and serve video reliably while threading in ads to make a profit. Sure people can try to upload video in plain text and create their own clients to ingest it, like I said "Open up the API and let people layer their own engagements on top of it."
It's an infrastructure project, like national highway or the internet.