What is important to the punks is the world of the ego.
What important in metal is ....the will of the universe.
It seems to me that metal is worship of power and finding beauty in power, not morality.
Punks, being based in the individual, are about escaping power -- or in other words, a transfer of power to self. Punk is anarchy, just like liberalism is anarchy, leading to consumerism, democracy and globalism.
Metal takes a more cosmic and ancient view, which is why metal songs are less about the drama of being a modern person than transcending modernity.
This is also one of the reasons metal could evolve further.
As with all movements, some good people got caught up in punk. Bands like Amebix, Discharge and the Cro-Mags were clearly exceptions. But even they didn't have so far to go with punk before they got bored and tried to become speed metal bands. Each of them did; Discharge became very Slayer-y, Amebix became AC/DC/Motorhead-ish, and the Cro-Mags took a Metallica (second album) direction.
Among other things, this shows us the difference between nihilism and fatalism.
Nihilism is facing an uncertain universe, knowing that we don't know shit, and making the best of it using its logical rules.
Fatalism is facing an uncertain universe, throwing up our hands in a tantrum because it doesn't work exactly as we "feel" it should, and as a result whining about everything and anything so that the ego feels stuffed full of empty crap.
At the end of the day, metal is music aspiring to something. Punk is not. And that is why punks forever hate us.
A former punk