Let's take a look at those chosen by Jesus to be His Apostles:
Simon (a/k/a Peter), Andrew, James, John, Phillip, Bartholomew, Thomas, James (the Lesser), Thaddeus, Simon (the Zealot), Judas (the Iscariot) and Matthias.
Not one woman in the group! And there were plenty of women who traveled with Jesus and His Apostles. If Jesus had intended women to serve as priests, He would have ordained one of them - probably the greatest woman of all time - His own mother. But, He did not. Hence, the Catholic (and Orthodox) Churches, following the example of Jesus, cannot ordain women as priests. It's just that simple.
Why do you have a problem with our Lord's decision? Do you feel He was in error?
I am not debating theology with you. It’s a subject I’d rather not delve into when people question me if I doubt God because I don’t view something the way they feel God intended for it to be.