It is not possible to "FIX" security with email as it currently stands. That would require a completely different protocol and it wouldn't be compatible with any existing email platforms, so it would effectively be worthless.

There is a reason why a "perfectly secure" email platform does not exist, it is simply not possible to design such a system and maintain compatibility existing email software.

I'm not sure if you guys are just incredibly naive or if you lack common business sense or what the deal is. This is akin to bitching that Tesla isn't really "environmentally friendly" because they make electric cars and you really need cars that run on unicorn farts to be truly carbon neutral.