It is the sign of democracy for the people. All of the social, economic, and political progress in the US is thanks to movements that translated into legislation, amendments, and court rulings via our democracy. Without a democracy those movements would have hit a wall. Of course we need to continue to improve our democracy. We need unfettered majority rule in this country. It is functionally possible to achieve this, but people have to vote. The movements won't translate into positive change if people skip voting.