Earlier quoted context omitted.
> Doesn't mean ads arent targeted. E.g. a 25 year old white programmer probably isn't getting Spanish language ads, or ads targeting new mothers, or ads for retirement communities. You'd be surprised. I bought a travel sewing kit five years ago on Amazon, and ever since I'm getting advertisements and "recommendations" for handbags, makeup and high-heeled shoes. It's so blatantly sexist and wrong it's almost funny aga…
Is it though? Just because you aren't interested in these other recommendations and connected ads doesn't mean the wide majority who purchases sewing kits aren't as well. If this "blantantly sexist" ads were wrong no one would purchase such ads. Sure they may be stereotypical, but that's what targeted ads are all about, creating data driven stereotypes that later can be used for increasing sales and relativity.
Yes, the "blatantly sexist" bias may have happened due to unbiased empiricism. But the ads as still wrong. Id the GP was an exception, that would be an worthless anecdote, but anecdotes of ads being correct are hard to find.