Well yeah, its difficult to understand how the Courts could rule it as a collective right for a clear-thinking person, but its also hard to understand how they can rule the Constitution requires abortion rights and gay marriage, but they do out of the fact that the Left sees the Judiciary as the only branch of govt through which it can impose its unpopular views.
That Americans had a right to own guns was most certainly taken for granted at the Founding. It probably didn't occur to them that it would ever be questioned. The Constitutional approval of militias was probably a much bigger deal. But in no way is the individual right to own guns dependent on service in a militia. That's crazy.
But crazy is what liberal judges do best.
It was President Nixons', Solicitor General of the US, that appeared before the US Supreme Court and declared that the administration considered the 2nd. Amendment as a "collective right". Can you believe it? Nixon and his Country Club Republican cronies concocted this evil interpretation in order to disarm the Black Panthers. As far as I'm concerned, Nixon should be dug up and impeached for this offense to the Constitution. Any right that is considered or rendered "collective", by definition, ceases to be a right. The government has "nullified" the amendment.