Family Guy is full of freak out humor, stupid slap stick, and pop culture references. it's a stupid show, that occasionally makes decent points.
Like, you don't like the show, don't watch it.
The animals in Family Guy are mostly portrayed as thinking, reasoning beings. Brian is portrayed as much as a family friend as anything, who has a crush on the main Lois.
It something that actually bothers him, which can almost make the show worth watching.