Khalifa Umar(ra) -- Split from Praying under influence

firstly he changed his mind [converted] even before he reached the Prophet[pbuh]
so it was not because he forcibly converted
secondly ur story is farfetched, at that time not even the most optimistic person could have predicted the way islam would be successful , could umar[ra] tell the future ? are u saying he had prophetic visions ?

you are discussing historical personalities and saying that u dont trust history or any historical sources ...i suggest then u join the "Quran only" lobby