Check the Basic Principle of Sportsmanship and the Rules. It states:
"Competitors in the sport of sailing are governed by a body of rules that they are expected to follow AND ENFORCE" (emphasis mine).

How can you bemoan demise of the "fundamental principle" if you won't follow it yourself? If you don't enforce the rules, don't complain when they are broken. Don't expect Race Committee or Protest Committee to enforce the rules for you. Don't expect that changing the penalty for an unenforced rule will change anybody's behavior on the water.

And no, I don't accept the assertion that the "norm has shifted". Sailors broke the rules 50 years ago and they didn't DSQ themselves (the only penalty available at the time) without a protest hearing. I don't see how ooching and sail material affect safety, but if rule infractions are affecting your fleet's enjoyment of the game, then enforce the rules.