All about those online petitions.
Petitions only work when the target actually cares about people's opinions.
Most Republicans right now are drunk on power and are not listening to constituents. Petitions are becoming more of a "feel like I'm doing something" gesture for Democrats and progressives. Mostly they have become a lead in to an appeal for funds to help the organization feed their followers "facts" to make them feel like they are right and Trump is bad. Time is better spent calling your representative or senator. A visit to your representative's office is 1000 times more effective. I'm lucky that my representative is a Democrat. I have his phone numbers in my phone. It was grass roots activism that got him elected and defeated Mary Bono Mack. He was challenged by the local Republican hack who he soundly defeated. I'll be ready to work for him in the next election.
No petitions aren't going to change anything unless you target a vulnerable politician.