But such politicians can be turned over. Un-elect them often. Otherwise, be generally nonpolitical while expressing discontent. Oppose consumerism and all else that they get cash flow from.
Avoid buying anything that you don’t really need.
Make the learning experience and activity of becoming more self-sufficient a frequent and ongoing practice.
Learn to manufacture something of good use or at best, something of necessity as a hobby for now. Support open source equipment design projects and permaculture for agriculture. Help to build the way to a much more distributed and less centralized economy.