They tried protesting at oil infrastructure, they stopped multiple oil terminals in the UK being used for weeks and caused shortages in various parts of the UK. Hundreds went to prison and everyone forgot about it after a week.
They throw soup at glass, 2 people go to a police station for a few days and people are still talking about it months later.
Unfortunately, they have to exist within the constraints of modern news media, outrage cycles and social media, and that influences their decisions.
Those look like 3 random people to me. I’m not seeing the caricature. For them to not be caricatures, what would you expect them to look like?