The preamble sets the stage for the Constitution (Archives.gov). It clearly communicates the intentions of the framers and the purpose of the document. The preamble is an introduction to the highest law of the land; it is not the law. It does not define government powers or individual rights.
What it says about the treatment of those fighting for women's suffrage is that they're treated like criminals. A example would be Susan B. Anthony who voted in the election and got arrested. The point the young women is trying to make is that they're just fighting for the equality and freedom of women and that they should be treated fairly and not like a criminal.
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