Reminds me of this great Steward Lee quote (paraphrasing from memory): "When I was young a lot of people accused me of being a champagne socialist. If they only knew how wrong they were. I was a cocaine communist!"

Criticizing someone of being popular is just a way to silence them. If they are popular then they are "cringe", and if they are unpopular, they can be safely ignored and that statue would have been removed by the police and forgotten without any news coverage.

Banksy may be popular, but he is not completely establishment, because well look at the statue. Its an obvious critique of the Iran war, and yet the Iran war still grinds on and UK bases continue to be used for Iran war operations. So apparently there is someone in the establishment that does not agree with Banksy. Someone boldly stepping into the void.