Commodetized anti-consumers are exactly what you describe. Vapid shells of a 'message' who tend to be funded by wealthy external donors of some kind, be they spouse or the internet or whatever.
If you want to meet real anti-consumerists, they're not on the internet extolling their lifestyle. (yes, I know, no-true-scotsman and what-not).
They're busy surviving. Because they tend to be subsistence farming or very near to that. They may sell art at local fairs, or goods at local produce stands. But mostly they spend their time just trying to get by.
It's just like the 'homesteading' and 'van-living' movements. The people who are actually living those lives, and who aren't just doing it for validation on the internet aren't posting updates daily about their cute new milk goats or whatever, because they're super busy not dying and just trying to get by.
Source; the throw-back hippy communes near where I live.