is that implying that there cannot be such thing as a non-capitalist or counter-capitalist subculture in the West?

No. That's why I said "a" subculture instead of just "subcultures".

The thing is, an overwhelming number of subcultures within a capitalist culture is going to be capitalist.

Like, if a group of anti-capitalists come together and form a community in an area and develop a sub-culture, it would be anti/non-capitalist by nature but it would drowned out by the sheer number of other capitalist subcultures.

They're the "exceptions that prove the rule", basically.

But, yeah, non-capitalist or counter-capitalist subcultures can and do exist in the West.