When Republican presidential candidates get together to debate, the yahoos come out. They don’t like gay soldiers, child labor laws, death penalty foes, or food stamp users. And don’t forget Mexicans:

Republican presidential candidate Mitt Romney may be in the lead in the Palmetto State, but that doesn’t mean South Carolinians necessarily like him.

During a Fox News debate at the Myrtle Beach Convention Center on Monday, the Republican audience booed loudly after being told that Romney’s father was born in Mexico…