Walking my dog every day before and after work gives me a good insight on this. In my neighborhood I have detected at least 4 Prados. Two 250s and two gx550s. All but one is driven by suburban moms hauling their kids back and forth to school pick up/drop off. One of the 250s is driven by a young dude that I would wage graduated from a 5th gen 4Runner. I would also bet the mommies have no idea what a Land Cruiser is and just like the new squared-jeep-like suv, which is a bit like a Defender but cheaper (in all aspects). I see too at least three 6thgen Runners parked but never saw their drivers. I suspect this represent a microcosmos of what happens throughout the country and I think if the Prado did not exist, I would see a lot more 6thgen 4Runners and maybe a couple more Defenders.
There are also two 200s and my 300OT nearby, all driven by dudes.