In the 2015 debates Leanne Woods, Nicola Sturgeon and Natalie Bennet stood out for me as the most politically pedagogical as they all mentioned Austerity and Cuts and Woods and Sturgeon have even identified explicitly the Ideology of Neo Liberalism in their interview appearance that campaign.
Draw your own conclusions of course.
In 2017 Brexit was the early runner and of course, the position of the 3 Female leaders who showed up all being remainers did not find it convenient to draw the attention of voters to the hopelessly Neo-Liberal and embedded Austerity positions of the EU, with Austerity baked into trade deals and institutions alike.
Transcript. For 2005 Cameron Debate. Link to :ODT Doc