My substantive criticism is that the author makes no substantive argument or point at all; she starts by preaching to her choir and she ends with it, at no poin

My substantive criticism is that the author makes no substantive argument or point at all; she starts by preaching to her choir and she ends with it, at no point does she attempt to communicate anything whatsoever to anyone who isn’t already fully subscribed to her worldview, nor does she display even slightest capacity for self-reflection. Then you look at her other work, and it’s nothing but more navel-gazing. I could go through and point out the numerous examples of begging the question, but you’d no doubt deploy “nitpicking” again, albeit meaningfully this time.