Okay, here's some comments on "the whole statement."
When speaking of Gandhi, a better anti-hierarchical and anti-religious (that is, descriptive rather than proscriptive) way of referring to him would be to call him Mohandas Gandhi (so he won't be confused with all the other famous Gandhis) or just Gandhi.
You're taking it for granted that "civilization" or "Western civilization" is some sort of refined and elegant culture, otherwise the irony that's part of Gandhi's response falls flat. The partisans of Civilization (Gandhi included) always use the term morally, to mean an elevated (note the hierarchical language), polite, and generally pleasant and positive set of cultural values and practices. Since modern Civilization is an outgrowth of and a contributing factor in the creation and expansion of Capitalism, it's difficult for an authentic radical anti-capitalist to argue for an expansion of Civilization (Western or otherwise).
Anarchism is certainly about culture, so long as we accept the generic definition of culture to mean learned and transmitted patterns of behavior. What is acceptable versus unacceptable, what is considered normal versus deviant. Such attitudes and beliefs are culturally specific, so yes, anarchism, like any other theory and set of practices, is all about culture.
Making any argument among anarchists that relies on the concept of rights (as in your statement "defending an individual's right to practice") is just a bunch of Liberal (in the sense of Classical Liberalism -- think Locke) bullshit. Your framing of the question this way shows that you are wedded to the discourse of that philosophy and its political manifestation in a modern liberal democratic ideal. No insult meant, just being descriptive.
So no, your statement does not make sense, either in the minutiae nor in the whole. Check your assumptions. Check your language.