Well, I tested exactly this out as you should recall from earlier in the thread.
I had three coops available, one prefab wooden coop, one very small purpose built coop suitable in my opinion for a broody with chicks, but up to five hens had roosted in it in the past and the current recycled plastic coop. For a couple of months at least all 20 chickens had the option of roosting in any coop. The change over wasn't instant, especially with Henry and those who roosted on the roost bar in the old prefab coop run, but eventually all 20 chickens voted with their feet and moved into the recycled plastic coop.
You may not like the idea of plastic coops but the little experiment mentoned above proves that at least 20 chickens (the entire populationin fact) chose the plastic coop in preference to the other 2 options.
Experience and evidence; I know they're a real fecker when one basis ones arguement on an untried predjudice.
I had the same kind of unreasoned resistance to the house I designed in Catalonia. I was told repeatedly, nobody would want to live in a hole in the ground.

Of course, when these people experienced what a hole in the ground could be, their view changed. Just about everyone who visited my house in Catalonia loved the place.
Plastic houses may well become an option for people in the future. A recycled plastic shell properly designed would make an excellent drop in a hole and cover with earth type build.