I think most people are at a loss as to how to change things from within the system. The debate about that has been going on for a long time. I can remember discussions from the 60's among radicals and dissidents in Detroit with some arguing that we should go into politics and "change the system from the inside." Some did and had some success, Tom Hayden and Sam Brown come to mind. Some radicals from a previous generation in Detroit made similar decisions, Mayor Coleman Young, Rev. Albert Cleage for example.
Again and again in US history, pressure from organizations working outside of the system forced social and political change: Abolition, organized Labor, Women's Suffrage, Civil Rights are examples.
Again and again in US history, working within the system has resulted in being co-opted by the system: corporate green washing and the sabotaging the environmental movement is an excellent example of that.
Let's look to the first approach for ideas and inspiration, and stop looking to the second approach.