I have to ask, but all these complaints about inattentive people on the MUPs, (Multi Use Paths) you are encountering them during a rush hour commute? Around me, they're used mostly on weekends, and when they're used during the week, it is not first thing in the morning.
The crosswalk complaint is valid.
The one about it taking longer, I'm not so sure about. If we were that worried about time, why are we choosing to go 10-25 mph instead of 55 mph?