How do you solve for example, de-federation with government owned instances ( which I imagine many would do)

Mastodon suffers the same problem as Twitter, if the people in control of the servers don’t like it, they get to be arbitrate for their users. The solution is not for everyone to host their own instance as it’s just immensely wasteful and complex, and since de-federation is not positively communicated, one can go a very long time before realizing they are getting content filtered unwillingly.

I just don’t see how this problem (specific content being blocked) would be solved by the Kamala Harris’s campaign team having a mastodon instance.