>>19051612look when you say islam you are involving many things, involving sects that have hatred against other sects and calls them the biggest enemies of islam!,
in the start the liphe of muhammad and all that are all vague and not clear, almost nothing is actually agreed on, the school of thought differs a lot between the ummayads and the abbasisds (which were more liberal leaning), overall islam had mostly a negative effect in the modern age due to salafisn which was promoted hy the eternal anglo