This is why I'm not completely anti-Capitalism, simply because I have a shitload of material processions (a few I actually want to get rid of) and it would... simply make me a bare-faced hypocrite.
The thing is, I'm not sure that this reasoning flies. For one, it's perfectly legit to criticise, even harshly criticise, the society you live in, hence freedom of speech and democracy. Secondly, plenty of these anti-left-wing finger-traps exist anyhow, like how a rich person who criticises capitalism is a champagne socialist, and a poor person who does likewise is engaging in the politics of envy. At some point, you have to say 'fuck it' and focus more on being right than being self-consistent.