As in many things, and I believe we have discussed before, I suspect the best real solution is to let the airlines decide in a market driven process what the appropriate trade-off is between security and convenience (see
http://realairlinesecurity.org).
And yes, I would probably be willing to board such an aircraft if myself and other passengers could be armed and they had the same policies as now about hardened cockpit doors and not giving up control of the plane.
I don’t think there are that many people that want to blow them up in the US because there haven’t been any attacks on the lines leading to TSA security, which would make a very soft bomb target.