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2. WHO ARE THOSE WHO CALL PEOPLE TOWARDS GOD?
If we look at the life of all those men, who have called other people towards God, we find a surprising common thing about all of them, that they were very pious and righteous men. They were the people who were respected in their nations.....
I will only comment on this part of your discourse. This is patently and demonstratably false.
It is well understood that "those men who have called other people toward God" can be sociopaths, homosexuals, narcissic, pedophil, alcoholics, drug addicts, criminals, and have any and every other personality disorder, weakness or flaw that may be seen in the human character. That of course is what one should expect.
Only in those countries where criticizing the Religions Men is a crime, or not allowed culturally, are such men and/or women "All pious and righteous men." That is where you punish and do not allow anything else to be said.
And that's why you Muslims didn't like Salmon Rushbi.