Bitcoin isn't actually that strong; it's just stronger than altcoins.
Once it truly gains momentum, it will definitely drive the altcoins.
The current situation is,
altcoins have already been harvested down to the soles of their feet,
if it goes any lower, the retail investors won't have any money left.
So, for now, it's at a standstill,
the main players can't make big profits,
the old retail investors can't make big profits either.
The new retail investors have all run out,
everyone is not making money.