Wow. That was certainly an objective source. A lefty professor from the sociology department of a very "progressive" California state college known for streaking after the first rain of the season, cannabis rights, barring military recruiters from coming on campus, and sporting a Grateful Dead library. To equal the level of objectivity here I would have to post links from Bob Jones University! Which, of course, I won't.
If you buy all that, nothing I could say is going to change your mind. But anyone else reading your "bullet point" list should consider the source.
The liberal arts college I graduated from in '95 refused then, and still refuses, to grant degrees in sociology. They offer anthropology and gender studies instead. Their rationale was that it is not real science. Can't test hypotheses, can't control enough variables, can't replicate experiments. It's all based on correlations and dubious means of acquiring data, and models to cook that data to say whatever you want it to. No way of determining causality, and opportunities for spurious correlations abound. Reading tea leaves. Sometimes this research produces some entertaining results, and may offer some insights, but certainly nothing one could ever trust or depend upon to be hard and fast truth. Not like a real science, where water boils @ 100ºC at sea level air pressure no matter where on Earth you fire up the Bunsen burner.
Anthropology is based off of hard evidence (archeology, skeletal remains, etc.). Gender studies doesn't make any real claims to being a science. granting degrees in either doesn't undermine the standards of what constitutes a science.
BTW my best friend has a Soc degree and I needle him about this all the time. He counters with "national surveys and my carefully designed data anaysis have conclusively determined that you are a jerk."