there's even an argument that being pro-alcohol liberalization & anti-marijuana liberalization, together, is racist and white supremacist.
alcohol's supposed primacy - long displaced, in reality - in western culture is due solely to it's association with christianity. there was no alcohol in native culture, and it's been banned in many other cultures, including islam.
the reality is that marijuana is the preferred drug of choice in most non-white cultures. by showing a preference to alcohol, you are in turn showing a preference to whiteness.
it may be unconscious, but the criticism is legit.