> Many people here would call a service run for the FBI without oversight or a lengthy and transparent approval process with the requirement for a warrant a backdoor

Er, what? No one would call it a front or back door. If someone gets root access to my machine and uses that to get access to data on my machine, that data was not the entry point. The phrase "without oversight or a lengthy and transparent approval process with the requirement for a warrant" shows what a red herring this is.