That 'market share' isn't coming back. Crypto has diverged for good no matter how shitty or wobbly the different paths are. Different people are now doing different things under one very tenuous umbrella that should be abandoned. Anyone who didn't expect this is a silly sausage.
This is a good article on why "BTC domination %" on marketcap doesn't even matter:
https://medium.com/bitcoinfoundation/the-bitcoin-dominance-indicator-fallacy-2b11093869d4People should caring about some shitcoin going up in price against BTC.
Of course, the concerns about august etc remain valid.. nobody knows the outcome of all of this.