What We Can Do
I know the personal is political but if we're being honest with ourselves most artwork doesn't have a direct and tangible impact on creating political change. And that's okay. Of course there's great exceptions to this but for the rest of us there are other ways :)
Obviously. Once every 2 years grab and carpool with your friends/family/co-workers and take them to vote.
I'd suggest setting up a budget friendly monthly donation to several. That way it's no hassle and long lasting.
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Want important cases to be brought before the Supreme court? Good! "The Legal Defense and Educational Fund (LDF) has been involved in more cases before the U.S. Supreme Court than any organization except the U.S. Department of Justice. Although LDF works primarily through the courts, its strategies include advocacy, educational outreach, legislation monitoring, coalition building and policy research."
It's also extremely healthy & fun to find ways to become a part of your local community. I like playing chess so I started taking my chess mat to my local park, for example (I've since moved but keep a mat & set in my car :). You could also go to the community center and bring some paper, pencils, and a sign, books, etc. Get outside of the introverted art bubble!