The reality is that it is very premature to dismiss a true second generation PoW coin such as Monero over what are very valid failures in the original Satoshi design. As with many technological innovations the first generation is not the one that eventually gains prominence.
Lots of good point in your post but this stood out.....mainly because only half an hour ago I was considering exactly this (for the millionth time).
Bitcoin is not the Google, Facebook, or Amazon of crypto....its the Yahoo, Myspace or Pets.com and it will get usurped at somepoint. The best bits will live on, the others will be improved.