Personally, I am sick and tired of all this hammer bullshittery. I just want to build houses. Now I have to hold this nail in one hand and hit it with the heavy thing??!! WTF is this all about? What if I hit my thumb? It's bullshit is what it is. I mean, come on. This is stone age technology. You want me to start with a hammer and nails? I want the damn nail gun now! I don't care if I don't know what to do with it. I'm an entitled brat.
More seriously, every real program is going to interact with a file system in some way at some point. You should learn how to use that before you nail gun yourself in the thumb. Unfortunately that means learning some command line "bullshittery."
So what you are saying is that courts have ruled in some cases that the 5th Amendment protects people from being forced to reveal their passwords. To me that makes the case for a backdoor even weaker.
Why give law enforcement the ability to arbitrarily circumvent these protections? If the court says, "No, the defendant doesn't have to give it up." Why would you want to have a mechanism in place for the prosecutor to say, "Eff the court, we're taking that information anyway."
I'm no lawyer, but I suspect any evidence gathered that way would be thrown out anyway.