The US has seen six governments since Woodstock ‘99, alternating the ruling party almost perfectly every four years: Clinton, Bush, Obama, Trump, Biden and Trump again.
Venezuela has seen only two presidents in 26 years, Chavez and Maduro, and both belong to the same ruling party.
So have Russia, Israel, Egypt and several other nations. I don't see the US cutting military aid to the latter two because of a lack of diverse electoral outcomes.
Venezuela has seen only two presidents in 26 years, Chavez and Maduro, and both belong to the same ruling party.