I think this is a very disputable point. I've seen studies supporting both. For example here is study attesting to the opposite of your point: https://www.cambr

I think this is a very disputable point. I've seen studies supporting both. For example here is study attesting to the opposite of your point: https://www.cambridge.org/core/journals/american-political-science-review/article/agenda-seeding-how-1960s-black-protests-moved-elites-public-opinion-and-voting/136610C8C040C3D92F041BB2EFC3034C https://www.cambridge.org/core/journals/american-political-s...