It's most meaningful to the people who are powerless and frustrated, who feel helpless in the face of an impostor and an ogre like Trump. It gives them courage and faith that some good will ultimately prevail. It's the small act of the underdog that says 'we're not going to take it any longer, and no, you don't deserve a star, Mr. Trump. I, the little man, am going to take it away from you, and so, here I am, spitting into the wind". Pick axe boy is like the people in the underground who worked behind the scenes in Nazi Germany to do what they could to bring down Hitler. No, we're not there yet, but it may not be far off.