> Would you like the government to come force me at gunpoint to let him use my soapbox?

That's easy, are you the only one with that soapbox? Do you own all the soapboxes? Are you a Corporation who is taking advantage of it's market dominance and near monopoly on modern free association to control public discourse?

So yes if your soapbox networks are now an integral part of public debate then the government should either regulate you or nationalize your assets for the public good. It's no different from why ISPs should be kept neutral, why power companys should be kept neutral and why public highways should be kept neutral.