This is not realistic though and as I said it would actually help the security establishment and military if more people used Tor.

It's pretty realistic given the impetus towards tor-enabled FOSS routers. Many people may begin using tor without ever realizing it, if certain people get their way and the tor network expands to allow such usage realistically.

No it wouldn't. How is it possibly helpful to the security establishment if I use tor for what is essentially an innocuous purpose?

It helps them because they are using the service for covert operations. If they were the only ones using it, it would be useless to them. They did very cleverly position it as an instrument for dissidents and at the same time told the generals that this would actually be an advantage. On top of that the NSA is known to successfully target Tor users. If you are really doing something that is against US security interests, you would be mad to use Tor, that was all I was trying to say.

The same thing can be said about the internet as a whole, even more so.