Not sure if I've told this story here before, but once upon a time, I didn't really get the point of most protests happening my area because I viewed them as "preaching to your own echo chamber" in a lot of cases. Ex: I saw people do a climate march through a very liberal university campus within a very liberal city, and I was just like "Okay, everyone here agrees with you. This place has crazy aggressive sustainability goals. What is the point of this?"
Then when Roe fell, there were a lot of protests outside the courthouses in cities near me, and though those city courthouses do serve the surrounding rural areas as well, the cities themselves are all rather progressive and left-leaning, so once again I was like "Okay, what is the point of this?" but I went anyway just for the experience. We stood on a street corner with our signs. Most people driving by honked in agreement with us. A few people yelled "abortion is murder" at us out their car windows, and we yelled back "abortion is healthcare!" Cool, okay, still didn't get the point because it's not like we were changing any minds or there in large numbers (we were no threat to any power structures), and the city already largely agreed with us.
But then we got another SUV that pulled up and yelled "abortion is murder!" at us (both husband and wife this time). Looked in the back seat, and they were traveling with their daughter who was maybe 13ish. She locked eyes with me, gave me the most serious look I've ever received, and gave us a thumbs up just above the window ledge so that her family couldn't see.
And that's the day I learned that protests are not always about threatening entrenched power structures but letting people in isolated ideological bubbles know that there are other perspectives and that if they share them, they're not alone.