They seem unable to to listen to anyone anything says without constantly interrupting the person speaking.

I wish James would tell Jenna to **** off.

It's because they're taught to be vocal and be unequivocally patriotic so they believe they're always in the right.

They ALL do it. Even the British housemates, who you seem to think have only non-stinky poo.

They do, they all seem to love the sound of their own voice.

because they think their own opinion is better

Lol. Don't you? Doesn't everyone?

This is my opinion, but I know that yours is better than mine. Durrrr.