A lot of people who are a lot smarter than me have written a lot about intersectionality, but here’s my short and to the point take on it.
There is only one intersection that matters ultimately, and that is the one that brings God and man together. That intersection is the cross, and it doesn’t divide us into the oppressed and the oppressors, but the holy and the sinful.
God is God and we are not, and our sinfulness made it impossible for our paths to ever intersect. Until Jesus brought the two together at the cross.
The cross is the most important intersection, and instead of drawing tons of dividing lines based on who we are, it erased those lines because of what Jesus did.
There is no longer Jew or Gentile, slave or free, male and female. For you are all one in Christ Jesus. (Galatians 3:28 NLT, emphasis mine)
Paul wrote this to people who were still Jews and Gentiles. To people who were still slaves and free. To males and females.
He wasn’t erasing their identities, but rather the lines of division that had been drawn based on their identities.
Intersectionality wants to do the opposite. It wants us to draw lines based on what makes us unique, and yet every line is simply another reason to hate the people on the other end of that line. At the only intersection that really matters, those lines were abolished so that we could be one.