Why is it that when someone owns a Chevy/Ford/Mopar they feel the need to rip on every other brand of vehicle?

I mean it's as if they were getting paid to advertise their opinion. Just because you're a loyal Ford fan boy doesn't mean that Chevys are complete garbage. I drive a Ford but I don't go around trash talking everyone who likes Chevys.

People are always trying to convince others that what they have, what they believe in and the choices they make throughout life are Correct. It's call "Validation"
They want you to agree that they are awesome.
It's not just Cars, but Religion, Politics, Clothes, Furniture, ect…