I don't think it helps to have a contest about which forms of discrimination are more impactful, because they all add up.
Gender, race, social class, within which nation's borders one is born... they all add up, and it gets worse if you "lose" in more than one category.
https://en.wikipedia.org/wiki/Intersectionality
But there are cases when the comparison should be made, and I hint at it in my first sentence. We do spend more effort on gender equality than racial equality because, frankly, white women have more power and value in our society than black men or women. For example the #MeToo movement was triggered and driven by the injustices done to powerful, privileged white women.
Sadly, social justice is driven too often by self-serving interests rather than social justice itself.