Why not? They used starch. It’s not like Stonehenge is actually damaged. And using symbols people care about is the only way to convey that the crisis we’re facing is actually threatening things we care about. Everything else will be, and has been, ignored.
Because it was built by Naturepath druids.
They vandalized a structure that represents the purest distillment europeans may have achieved of their ideal vision thus far in human history.
That’d be like me demanding bike infrastructure by bombing Amsterdam.
I’m not sure I’d describe practitioners of human sacrifice in quite the same way, myself.