It's not an open goal at all.Anti vaxxers are regarded as cranks by most of the electorate. Zero interference from government implies no fiscal interference either. A friend who I have been staying with this week argues this ( he's a JRM fan) The implications are low tax low service economy, he favours the Singapore model. But then he inherited a bloody great farm from his father. The fact that millions would freeze and/or starve us of no consequence. I do agree though on no interference in foreign wars in far away countries of which we know nothing.