I agree. Actually I’ve known more anti-papacy Baptists than anti-papacy Presbyterians. So many Presbyterians have fallen for an ecumenicism that very nearly denies the obvious and important differences between Rome and the Protestant faith.
One of my favorite sites is http://www.LazarusUnbound.com
It's a sewer.
Scripture Alone!
I know in my wife's case she was surprised we would bring our Bibles to church. She saw the sense of it though when I explained it's to make sure that nothing is being taught that is not supported by Scripture.
Also, if you study history you will understand why members of independent Christian Churches would not trust a centralized command and control church that has never treated other churches as coequals.