I strongly believe the Protestant rebellion of 1517 and the current Protestant churches have created atheism, by accident because if one denies the real presence in the Eucharist and other miracles such as incuruptable saints the next step eventually is to deny the existence of the resurrection and then Gods existence it self
With humility love and grace, I sort of agree with you and I am Catholic (I'm being serious now). Your line of thinking is rock solid and when I was younger I would have offered a complete agreement. At this point I have changed. I'm being serious now because we are spiritual brothers.
Now, Martin Luther in my opinion was right to rebel against the Church of the time and we Catholics are better for it. My dad is a loving Staunch Catholic and has shared with me books he has read. What Martin Luther did is say, "instead of having a Mass in Latin with only the Priest having access to the real Holy Bible, the Mass should be in the common tongue with everyone having access to the Bible." Now, we as Catholics benefit from that because over time the Church agreed.
So, I genuinely see our Mainline Protestant Brothers and Sisters as whole hearted Christians. The Presbyterians, Methodist, Mainline Baptists, Anglicans, Episcopalians all broke from the Church and made reforms and we Catholics later adopted them.
Now, this is going to sound Unorthodox and don't hate me for it, but Mormons do have a Holy Book and while it is not our Holy Book it is something to explore. I'm reading it right now and you will find that maybe, maybe Joseph Smith was right and should be loved. In other words, Mormons are Christians.
Now, where I do agree with you is I think the Christian Charismatic Movement
Charismatic Movement - Wikipedia
Is something to explore to get at the root of Atheism in America. The Fundamentals were started there. The Wikipedia article is not accurate (the Catholic Church was never involved in the Charismatic movement, America is not a Catholic Country but that is how Wikipedia works. You make an argument it spreads and people write Propaganda in response. Reggae has nothing to with Ska for example) but if you get a real book on it I think you can explore how the Charismatic movement, which made religion political like Shinto, and the Fundamentals really lead to many losing Faith. In other words, I'm not blaming all Evangelicals (which in my opinion are not Protestant because their response has nothing to do with the Catholic Church unless you want to call them the Protestants of Protestants) but I'm blaming bad Evangelical Churches.
Now, I will write if you pray for Jesus Christ to give you guidance and speak with you, you may hear from him. What he has told me before (we are Catholic we share Miracles) is, "is the Catholic Church keeps Christianity Progressive, the Protestants including Evangelicals keep it Pure."
Godspeed, I love you brother keep going with the Faith.