Hey, OP (original poster) here. Personally, I think if someone wants to walk and talk on their cell phone all day it wouldn't bother me. If someone wants to run on the trail instead of just walking on the trail that's OK too. Hike your own hike.
The trail belongs to everyone and the trail shouldn't be what one group thinks it should be. I do understand there needs to be limits to maintain some level of decorum like no bicycles. It's just a matter of where you think the line should be drawn.
I still think you could have a race without being too intrusive. Just limit the field to 25.