Here we are ! Finally you wrote what was in your mind from the beginning.
It makes no difference to you if Quran is altered.
Unfortunately, you are going against .
giveup
Many people believed in the Quran when it first was revealed long before many of its verses were revealed and died without having much knowledge of the rest of the Quran. Many died in Mecca and the early days in Medina. Plus the magicians believed in Moses long before they came across any of the scriptures that bears Moses's name. So scriptures are biut one sign of God and not the only sign.
Faith is something God controls and not humans. God talked about the sun and moon as signs, and the day and night as signs. A blind person may never see those signs but it does not mean he can't believe in God. Faith is not based on what the eyes can see or what the ears hear.
