How is she part of 'The Left' exactly?
I think that most people by default are subject to 'the left' because in many areas it's the primarily promoted ideology, and until they do research/accept certain facts they'll be prone to it whether or not they hold strong opinions on various matters related to it. For instance, Daisey Ridley was quoted as saying that every "sane" person opposes Trump. This could be a strongly held belief, or it more likely is the assumption of what 'everybody' knows to be true, a common, basic fallacy.