Ok... so to answer some requests.. I have waited until it is pitch black outside to go and place him back in the coop. His entourage stays with him, so I have to place them back in the coop as well (although none of those 5 have any issue with roosting). I even added a shallower angled ramp with 2x2 treads and this is still continuing. He is right now at sunset staying under the coop and trying to call out the Ameraucanas and ISA brown from the coop instead of going in which would result in the RIR's and BR's following. If this doesn't stop, I'm gonna have to cull this rooster, and I really don't want to.
By the time I started to post this, he stayed underneath the coop and kept trying to call the others back out of the coop right up until sundown. Really hope someone has a solution to this, but coop design isn't changing at this point. What was the door is now a vent I need to put a hinged cover over for when it gets really cold out and I've added a longer, shallower ramp from the floor level of the coop on down. I'm telling you this bird will not even jump up on a brick. When the first bird leaves the coop in the morning, he's the next one to follow, but he never goes back in.
I really hope someone has a solution here. I've grown quite fond of him, but I can't have this... We have far too many predators here (coyotes, fishers, bobcats, and black bear) for him to keep them outside and sitting at ground level drawing them in.