ISTM you've got a twisted pitch. the FS movement is about freedom, not products; nonfree software subjugates you, it's an injustice, so it doesn't belong in civilization. if you don't like what the software you use does, you should be free to improve it, or to fund whoever you trust to do so on your behalf, individually or collectively.
me, I'm very happy with gnus and org-mode in emacs. I was genuinely curious about what you wanted for email and calendaring, but I wouldn't be surprised if you, like most people, had got so used to the human farming environments that you find them more comfortable than user-liberating and -controlled ones