I really don't get what they think they will achieve? The vast majority of people are sympathetic with tackling climate change and helping the environment but they need to work. Pay rent etc... this just tinkles them off and makes them less sympathetic. It is counter productive. The head of extinction rebellion saying he'd block an ambulance carrying a dying patient. What message does that send?
I swear a lot of these don't give a fudge about their cause (which ever one that is), they are just anarchists that want to cause trouble. Or are professionals paid to. The money coming from sources that just want to see western economy/society suffer.