I work for the Tax Foundation, a nonpartisan tax policy think tank. As a 501(c)3 we're not allowed to lobby, but we do work hard to show legislators the benefits of taxes that are simple, transparent, neutral, and stable.
Thank you for the work you do. I disagree with the principle of neutrality because I support Pigouvian taxation. But we could use a lot more of the other three.
Senator Warren has introduced bills in the past to simplify the tax filing process. I'll let you do the homework to figure out for which party you should vote to help this kind of legislation pass.
Work to elect people who believe that government is by the people and for the people? People being defined in the traditional sense rather than including corporations.
The only other hope is probably tax reform but good luck getting agreement on where the tax rate(s) should be if deductions and credits were eliminated.