The problem here is simple: people have too much money at stake now. The solution is not so simple, given this is a technology about money.

But I do feel that it may be possible to learn from all of this, and preserve what is useful and use technology to eliminate the negative influence. For example, preserve the incentive mechanism for decentralising certain services (which could have genuine benefits for some use cases) while ensuring there isn't a publicly tradeable token or that if there is that it is protected by a stablecoin mechanism to prevent speculation. (Just one example.)