The word conservative is more commonly (outside of US politics) used as an adjective. So should "I am conservative" also be accepted here?
conservative, small 'c', is an adjective. Conservative, big C, is a (political) noun. Please provide correct translation, Duolingo.
There is small c conservative that is a noun. It's only capital C if you are referring to a specific party that is named Conservative. For example, if you are talking about a member of the (US) Republican Party, that person is likely a conservative. But if you're talking about a member of The Conservative Party (UK), that person is a Conservative.