Great analysis, but the reality often differs from your expectations. I thought that ETH would make it to the top and would overcome BTC and that altcoins will finally add more value, but nothing happened till now.
I am sorry to say that it would have been a shallow thinking to have assumed that Ethereum could overtake bitcoin with the level of exposure that we all already have to bitcoin. I have never seen anyone in this cryptocurrency sphere that has never accumulated one or two bitcoin or several satoshis, while they make coins like Ethereum and other top coins as alternative, so you don't see everyone holding Ethereum, but you would see everyone holding bitcoin.
All those coins like Ethereum and Litecoin actually have a very great potential in the future, but I=they can never be compared still to the potential of bitcoin, but only serve as an alternative, that is if we cannot afford bitcoin, they can still get enough benefits from investing in these top coins.