Wow...I'd say you're probably one of the "10%" every company supposedly has...I support van segregation. These are airline professionals who have the right to remain well-rested, focused and stress-free as much as possible.
How many times have you gotten in the van before the sun rises, only to be crammed in with a low cost crew who are late and then start yammering like it's the shank of the day? The Captain has no authority over this crew, their own Captain is too wet behind the ears to know proper van ediquette.