Written in response to someone talking about thinking critically “against the powers that be.”
Given your phrasing, it’s highly improbable that you’re actually talking about critical thinking. One does not think critically against anything. You think critically, period, about everything. Perhaps most important, this includes yourself and your own notions. If you only think critically about (let alone against) others, you’re not thinking critically at all. If you think critically against someone or something, rather than about, you’re just out to find flaws so you can justify your own preconceived notions.