I'm not suggesting giving up the US market. I'm suggesting moving out of the US and continuing to serve the US market from elsewhere, because the US does not have a nation-wide firewall. And working with organizations mounting legal challenges to "please destroy your company in order to put in a backdoor for us".

Certificate Transparency has essentially eliminated the problem of backdoored CAs, because attempting to do so would destroy an entire CA. Binary Transparency can do the same for software.