That's a lofty ideal, but it's not going to play out that way in the real world.
Speaking as someone who works in tech and has (what I like to think, is a pretty in-depth knowledge of it), that's simply not the way things pan out.
"Open source communities"... the same people who brought us TAILS/TOR, the mechanisms by which people can buy stolen credit info and social security numbers, easily access child phonography, or a hire a hitman for bitcoin, with virtually no mechanism for the government to stop it.
Open source communities are a textbook case of what I'd call "principled to a fault"... a lot of tunnel vision in that community. While they may have good intentions when purposely building systems that government entities can't get into for principled reasons (for instance, helping political prisoners communicate to the outside world, or being a mechanism by which Ed Snowden can whistleblow on the NSA and alert the American people), the end result of their efforts ends up being something very different.
I mentioned TAILS/TOR before (the gateway to the "darkweb")...it was intended to be a privacy mechanism by the people who created it, the end result ended up being 90% child exploitation and identity theft material, with even the creators of the system being powerless to stop it due to the anonymity mechanisms they built into it.