The quran has 114 chapters and is not presented in chronological order, but chapter length.?

order, shortest to longest. many verses in the quran conflict. so the quran has the concept of abrogation [sura 2:106 ] applies. this means, later occurring verses cancel earlier verses. one of the favorite sayings of muslims is there is no compulsion in religion. this one of the early peaceful meccan verses of the quran. latter mohammad gave the verses known as the verses of the sword. such as; sura 8:12 instill terror into the hearts of the unbelievers,'' smite above their necks and smite all their finger tips off; sura 2:191 kill the disbelievers wherever you find them;2:1933 and fight them until there is no persecution and religion is for allah only; sura8:39 so, fight them till all opposition ends and the only religion is islam; sura 8:&allah wished to confirm the truth by his words; wipe the infidels out to the last; sura 9:5when the sacred forbidden months for fighting are past, fight and kill the disbelievers wherever you find them, take them captive, torture them, and lie in wait and ambush them using every stratagen of war;;;;;;;;;;;;;;;;;;;;;;;so why do muslims use the abrogated verse, there is no compulsion in religion, instead of the dozens of verses of the sword that call for muslims to kill all non-believers?