Normal people have friends and family and would like to use social media to stay in touch with them. There are network effects that make it practically impossible to switch. This is not something that can be done with the power of love and well informed agent in the marketplace.
One solution would be to nationalize facebook and other social media and turn them into public utility coops that are run democratically by giving the workers that work there a vote for who and how they should be managed. And give the users a vote.
Everything else is just fantasy. Facebook is forever. You’d need many billions in marketing and advertising to get enough people to switch. And then it will be the same shit.
Unless of course Elon Musk buys facebook, then it will be trash in less than a year.