You aren’t supposed to like broccoli. Broccoli contains chemicals that (most of) our brains are wired to read as “poisionous.” It’s a defense mechanism that prevents animals (and, if we had any sense, people) from eating the nasty green plants.
Actually, I don’t mind brocolli so much, provided that it’s not soaked in cheese or anything. With a little ranch dressing, broccoli is pretty good.
On the other hand, green beans have no redeeming qualities whatsoever.