[celticmusic]

> How one generation can be almost universally opposed to something like gay marriage, then suddenly in just a generation the majority of the population is in almost religious support of it.

2 reasons.

1. That isn't actually what happened, DADT was in the 90's, for example, and

2. Each generation learns from the mistakes of the generation before it (and makes mistakes of their own).

DADT was the death knell of anti-gay sentiment. It was the military drawing a line in the sand, and when that line got stepped over, drawing another line in the sand. It was inevitable that line would be stepped over as well.

This is how life works.