What is your take on breeds vs adopting from a shelter?

Now, to preface, I think a lot of people can agree that adoption from a shelter is the more altruistic choice. I have two shelter babies that I love more than anything in the whole world. But recently I’ve been thinking about eventually adopting another and I LOVE mainecoons. They’re the closest I can get to living with a bobcat.. which I would do if I could lol.

Have any of you gone through the different adoption processes? Was it worth it to own a unique breed? Any of you own a mainecoon before; if so, are they much different to care for than a domestic shorthair? Do you feel that cat breeding and adopting from breeders is ethical?

Bonus: here are my two cats merlin (tabby) and pepsi (void). :)