The opposition to "identity politics" is a form of identity politics in itself. The reaction to so-called identity politics is merely a defense of the current status quo where the demographic of software developers is predominantly male, as the most obvious example. You could try to argue that this is somehow natural, although the evidence suggests that actually computer science and software was a lot more popular with women until the artificial intervention of certain technology magazines pitching software development as a hobby for men.

For instance see how the rate of women in computer science began to attenuate around 1985: https://jaxenter.com/women-in-computer-science-majors-133646...

Men acting in a misogynistic way defends and reinforces this trend, which is what codes of conduct attempt to alleviate. Calling the opposition to this is a staple of what has been labelled "identity politics", although again it is merely a form of defensive identity politics itself to maintain it as maintaining these behaviours will maintain the downward trend of women participating in computer science.