Each successive No kings Day will become less and less newsworthy. Politicians aren't swayed by protests. What's important is that these folks attending actually get out and vote.
Yes and no.
there are way more negative example than positive ones. However the positive ones are really important.
I think there are even more positive examples if you include other countries beside the US. Africa, South America and India are the first ones I would cite.
But here in the US we still have some good ones.
The March on Washington in 1963, 200,000 protesters. Got the Civil Rights Act passed.
The Women's Suffrage Parade, 1913. Got the 19th amendment passed.
The Montgomery Bus Boycott, 1955. Influenced the Supreme Court to end segregation
Earth Day, 1970. Helped create the EPA
Vietnam War Protests, 60s and 70s. Helped end the Vietnam War.
and although I agree with you on the importance of voting. Some issues were influenced by people who couldn't vote.
Women's suffrage may be the best example. Let's not forget the voting rights act of 1965, which gave blacks the right to vote. And there are all those School Children protests. From Greta and climate change to March for our lives in 2018.
Oh and reminds me of one of my favorite quotes.
"Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has."
- Margaret Mead