Start by calling (or visiting the area office of) your senator and congressman. If you are reasonably articulate, they engage and listen. Doesn't matter if the listener is not a techie; they will ask questions around policy and why it affects constituents.
This is 1000x more useful than online petitions or other passive stuff. Politicians know that one person to have taken the effort to do this, means 1000 others are feeling the same thing but are quiet.
From my experience with the fed level senator.. they're already lobbied to shit. For example, explaining to Duckworth that fed level id tying to your internet travel and encryption backdoors aren't safe.. they'll send you copy that she really wants you to know she's thinking about the children while rolling around in her wheelchair.
This is nothing to do with politicians.