First off, you need to define "Protestant." Just because a church isn't Roman doesn't make it "Protestant."
A true Protestant church is protesting error. Churches that are truly Protestant endeavor not to slip into the error of ordaining women.
That being said, The Presbyterian Church in America and the Orthodox Presbyterian Churches do not ordain women. They broke off of the, or a predecessor of, the PCUSA, over the exact liberalism brush you are trying to paint all Protestants with. All you have to do is look at threads started by GRPL members and you will see a significant difference between true Protestants and modern Evangelicals.
Interestingly, there is a devout Roman Catholic woman who I work with who told me that she has been in PCA churches that act more RC than most RC churches. Go figure...
Had I said "all" Protestants ordain women, I could see your point...but I didn't. I also am quite aware that not all churches which are not in communion with Rome are Protestant, being Orthodox myself.