More forensics:
#Launchctl as root runs fine.
getrusage self -> 0.21%
getrusage children -> 15%
$Launchctl as my user hangs on most commands.
getrusage -> Hangs
All the scripts have been removed from ~/Library/LaunchAgents and box has been restarted.
But it didn’t work. My user’s instantiation(?) of launchd is fubar.