

They are the locals. They are indigenous New Zealanders and they are doing something that is customary in their culture in the kind of situation they were in during that session.
The New Zealand lawmakers were trying to pass a bill that would have severely reduced the rights of the locals, and this reaction is part of how the local culture demands people to act.
Not really. European NATO countries are currently strong enough to repel a Russian attack if we so wish. Taking into account how strong the Russia is at the moment. It will be stronger in the future, but we are easily able to increase our strength more than the Russia can.
And if USA withdraws from NATO, then the rest of EU, not only Finland, Baltics, Sweden, and Poland will be forced to take defence seriously. This will make NATO more like it was supposed to be, and it will no longer be used for offensive wars.
But… USA withdrawing from NATO would of course have negative sides:
But still: The EU is the biggest economy on this planet. We are absolutely able to win a war against a country with an economy only as big as one of our 27 member states. We just need to bother to do so. Which means we’ll need to change our mindset. Heh.