He's not arguing that Perry wants to kill homosexuals. The comparison to Hitler is more that they segregate (sp? Phone doesn't flag it up) a certain type of people (Hitler, the Jews, those with disabilities and homosexuals; certain current politicians homosexuals) and effectively punishing them. Alright, so in the US it hasn't gone as far as genocide, but like Gavin said, they're quite happy to sit back and let it happen in other countries.