The growth in protestantism is all very disturbing. And if you are asking 'why?' then you should be aware that it's rather self explanatory.
Yep, those bible-reading/bible-believing Protestants are a real problem.
Characterizing one's type of Christianity as 'Bible-believing', by implication characterizing other types of Christianity as not so, is creepy. I say this as a Protestant.
To be clear, I wasn't saying there aren't Catholics who read their bibles, it is just that Protestants are generally more likely to be bible-readers and therefore bible-believing and therefore more likely to know what the bible says and therefore more likely to adhere to it...which has a slight tendency to be seen as offensive to the world.
And I say this as a Christian who accepts both Catholics and Protestants as brothers and who believes that scripture is the inspired word of God written down by the writers of the bible as they were carried along by the Spirit.
But, for those "Christians" who reject the bible as the world of God and go off and create their own religion, I don't have anything to do with them. Believing that the bible is the word of God
is the dividing line for it is written:
1Cor 14:36-38 Did the word of God originate with you? Or are you the only people it has reached? 37 If anyone thinks they are a prophet or otherwise gifted by the Spirit, let them acknowledge that what I am writing to you is the Lord’s command. 38 But if anyone ignores this, they will themselves be ignored.