The type of candidate that could win the general would have no shot in the primaries.
As to Sydney, she has great genes, we need more of that. But I'd also say the same about Ciara, Salma Hayek, Priyanka Chopra, etc. We need more beautiful women, not less. A 5% increase in hot chicks would probably result in a 25% increase in GDP. (I have no idea if that's true)