I can't help but wonder if the nature of the US being a 'melting pot' doesn't result in more difficulty in achieving agreement on national policy decisions. I'm

I can't help but wonder if the nature of the US being a 'melting pot' doesn't result in more difficulty in achieving agreement on national policy decisions. I'm not saying that diversity is bad. In most cases, we benefit enormously from being a melting pot. However, on some national policy topics it makes me wonder.