The precedent set by the OT and Jesus in the NT. God made us male and female. We are different. Live with it.
You are in for a big disappointment. Stick around another 50 or 100 years. Priests will marry and women will be priests. The catholic church is not bound by the old testament. I am not male and female. I am male. Jesus did not have japanese priests and I can list a hundred other characteristics the group he chose did not have. . The omission of women in the original group is as much cultural of that age than a teaching of God. And for centuries the church as kept women out of a small portion of clerical life.