Here's my analogy.
Everyone's at the pool, at the diving pool. There's 1 meter springboards, 3 meter springboards, the 4.5., 5, 7.5 and 10 meter platforms as well.
VC divers dive from the 10 meter platform, yet 95 percent of the pool users choose to use the 3 meter and 1 meter springboards and the lower platforms.
Very few divers are good enough to dive from the 10 meter platform, yet everyone falls the same, last 1 meter into the pool.
The VC diver is on the 10 meter platform and demanding everyone dive from 10 meters and wants the pool to tear out the 1 meter boards and get everyone diving off the 10 meter platform.
Instead of recognizing most pool users will always be using the lesser platforms and springboards, REGARDLESS of how many diving classes the pool offers.
This is why I feel vehicular diving will never work as diving advocacy.