Rude obnoxious store manager

My question is why would the store manager treat you like that if he knew a complaint would get you a return? Sounds like ABC has a "squeaky wheel gets the grease " policy. I called a Ohio store and they said they have no return policy also. Sketchy company with sketchy policy. Cant believe they have been around as long as they have. As a matter of fact when I called and asked about the return policy the manager got hostile towards me a said I needed to call the manufacturer. WTF ?