Why do people bother posting these things?
It's not like Bitcoin is hurt by people buying other coins as well. The people buying shitcoins might be hurt by it but Bitcoin will not. After all, it started on 100% "dominance" so the only way is down. Why make up some controversy here?
The also the fact that "market dominance" is completely made up. It is based on "market cap" which is a real word but completely irrelevant to Bitcoin. People don't speak about the market cap of the US dollar or even of gold. Because it would be irrelevant.
Then there's also the fact that the majority of altcoins aren't even traded at any remotely reputable exchange. People sell a token for a dollar, then make another million tokens which nobody wants to buy and somehow that counts as a million dollar "market cap". Which somehow would unseat Bitcoin "dominance factor". It's ridicolous on the face of it and it's really tiresome when people pretend to take it seriously in some misguided attempt to pumpt altcoins.
Some seem remarkably dismissive of the shift - does this reflect its unimportance, or their defence mechanism against a situation they were sure would not occur? I observe every imaginable way to paint the obvious as what it isn't.