I started out in Christianity in 1974, in my late 20's and feel perhaps stronger about the bizarre nature of certain branches of Christianity than you might. I think the TV Evangelicals have done a horrendous amount of damage. Our family moved around a lot, starting out in a sort of Baptist Church, then non-denominational where high profile Pastors with huge churches ruled. As I've said before, my departure from Christianity was driven partially by "feel good" theology. They seemed to put the blame on people who struggled for backsliding, when infact everyone has some trouble in their life.They tried to abrogate parts of the Bible that made sense, but to then had no validity.
Of course, Israel did this "great falling away" in their own OT history, and perhaps several times. They murdered how many Prophets?
My introduction to Islam was to try to understand why they were mad enough at us to do the 9/11 attack. Over the years, I've realized that about 20 bad men did 9/11 and the whole of the Islamic religion is not at fault. They re-defined the word Jihad, perverting it to the point that its present day use is totally wrong. Jihad used to be about our inner self struggle to make ourselves pleasing to Allah. Now to the ignorant, the meaning is war against the infidel.
Other than my non-Islamic belief about Jesus Christ as the Son of God, I remain Muslim in the way I think.
I've seen some indication that there still are some Christian Churches that teach theology that is soundly based in the Bible, and this pleases me.