Is this really discrimination? Their algorithms showing ads to those who click them does not seem discriminatory to me, but rather just a probabilistic guess at

Is this really discrimination? Their algorithms showing ads to those who click them does not seem discriminatory to me, but rather just a probabilistic guess at showing the most relevant content that is most likely to convert. That hardly seems impeachable to me. I would also be curious if algorithms that don’t know gender as an input learn it by proxy anyhow, because there are real differences in how people behave based on their gender. There are, after all, significant psychological differences between the genders that hold true across national/cultural lines (https://en.m.wikipedia.org/wiki/Big_Five_personality_traits https://en.m.wikipedia.org/wiki/Big_Five_personality_traits).