And how many easy to use, one-click install, git over ssh with port-forwarding and key generation packages are there to download out there? There's two levels of software - easy to use and complicated. They both can accomplish the same goal with different levels of privacy.

There is no such software, because what you are asking for is for the software to "one-click install" read your mind. Dropbox cannot cover customized use cases, and it does not accomplish the same goal. My use of the commands mentioned cannot be replicated by Dropbox. The facts that Dropbox does not provide adequate privacy, and is proprietary software, also prevent it from accomplishing certain goals (namely that I want my data to remain private, and that I would like to avoid using proprietary software).