Correct in all points except the paper encryption. If you strengthen your encryption so that it is unbreakable, as a OTP technically is, it would just attract the wrong kind of attention. Staying in the mainstream is safer.
Also, OTPs would be susceptible to statistical methods.
There's also the issue of transporting shared secrets to the recipients. All public key encryption is way more vulnerable than a symmetric cipher.
The whole issue is really academic. No one with an actual life is going to take the time and care to make their communications secure enough to resist a nation-state's resources. Avoid scrutiny is the best advice I can give.
Correct in all points except the paper encryption. If you strengthen your encryption so that it is unbreakable, as a OTP technically is, it would just attract the wrong kind of attention. Staying in the mainstream is safer.
Also, OTPs would be susceptible to statistical methods.
There's also the issue of transporting shared secrets to the recipients. All public key encryption is way more vulnerable than a symmetric cipher.
The whole issue is really academic. No one with an actual life is going to take the time and care to make their communications secure enough to resist a nation-state's resources. Avoid scrutiny is the best advice I can give.