Deacons are the administrators and chief foot-washers. If women are deacons then you are ordaining women to church office. But the church office of deacon has never included teaching or having authority. Deacons are not teachers. They are not leading the church.
Deacons are chief slaves, waiters, stewards.
There is a lot of confusion about the office of deacon. The issue is further confused by the practice of many of churches. But Biblically speaking, deacons are NOT vice-elders. Deacons have a completely different role to play in the church and the office requires different gifts and different abilities than the office of elder. None of these functions involves teaching males or having authority over males.