You got real points. But shitty brand? In my opinion quite the opposite. You can´t even talk with people in the real world about altcoins without starting the explanations with Bitcoin.
The rest looks true.
But one thing is very important. All altcoins are priced in BTC, and had to be exchanged through Bitcoin. Maybe the only killer feature left.
sure, it's a piece of history. When explaining crypto to someone you will always have to mention 'bitcoin' as the first of its kind.
That's my exact problem: i am forced to use it when i want to trade alts!!!! And its price negatively affects all the altcoins!!!! And the volatility too! It's not even good as basecurrency!!! Fiat is better!!! How sad is that?