> The most striking argument against this line of reasoning is that there is no possibility for you not to act politically. By ignoring the issue of systemic discrimination (“don’t care don’t personally discriminate”)

This is not a very good argument, it would make the words "political" and "systemic" simply meaningless. First of all, it's implicitly assuming that the only way of effectively addressing the issue of systemic discrimination against X is to actively care about whether X is involved in the stuff we personally use. But "personal" and "systemic" issues and approaches are mutually contrary; that's what "systemic" means. Also if every social action is "political" by definition, what's even the point of resorting to the word "political" to begin with? It's not saying anything of relevance.