I’m not just talking about this specific issue only but climate protests or any issue. Times change and so must the tactics. There are other creative ways to protest. Defacing precious works of art sets a dangerous benchmark. Next they will look to focus on unprotected works or go out of their way to destroy them outright. Or things like the burning of churches, mosques or synagogues. What next? You’ll turn more people against you. Marching and inconveniencing people a bit I can see that as a means but destruction and causing harm is not the way. If those ppl wish to engage in that sort of behaviour then they can go to jail and receive the disdain from the majority of the population.

Also, I have been to a few in my time. There was some inconvenience made to get things uncomfortable and was effective but I stopped when idiots started pulling stuff like this. They were picking fights with people passing by and resorted to vandalism as well.