Altcoin needs independent from BTC.. btc is like usd
No its not like USD, because USD is centralized currency.
Bitcoin is not centralized and that is the main difference.
You are saying/observing that altcoins can be manipulated because of Altcocins/BTC pairing, but you must understand that all kind of pairings will always be available for manipulation and without pairing you cannot determine value of something.
Also keep in mind that even fiat currency has some kind of pairings, for example USD to gold reserves.
I think he's saying that altcoin price mostly depends on the growth of Bitcoin. You can see the graphs. Only Ripple,Bitcoincash have independent growth compared to Bitcoin(in past 2 days). That might change in the near future. But yeah. Denarius has great potential,we all agree on that for sure !