How is technical nature of your communication with others at all relevant? The court can order you to hand over the encryption keys, and if you destroy them, then it's the same thing as destroying the communication.

> I'm never talking to anyone over insecure channels again.

You can and should do this. No one will punish you for it in court unless you refuse to give them evidence that they have legally obtained.

I'm not sure why this is so complicated for you.

Let's say you murder someone with a knife, and you keep that bloody knife in a safe labeled, "Potential Evidence of Murder". A judge orders you to open the safe, and instead you incinerate it and everything inside it.

You wouldn't be punished for keeping your jewels in other safes. You'd be punished for committing a crime and then preventing a court from getting the evidence.

It's always weird when some tech nerds think they have some magic wand which avoids legal controls. A judge would just smack you down hard if this ever came to court, and your argument of well I special exception here due to technical barriers will just end up with you getting an adverse judgement or contempt charge depending on how flagrant it and if you had prior legal orders to the contrary.