Sorry to hear that man. That was probably an unavoidable incident being a drunk driver, they do things totally unpredictable. Could a very experienced rider avoid it? No one knows.
Same here unfortunately. I feel like if you ride long enough and have enough friends with bikes you'll attend your share of motorcycle related funerals. Lord knows I have. :sadI've had many friends die over the years in bike related incidents. You just cant read too much into it.