Why not? Mecca is stolen ground. It was originally an Arab Polytheist Temple(which later on possibly got some Hindu influence) until the former half of the 7th century CE, which is when the Early Muslims DESACRATED it by killing many the worshipers and substantially to severely damaging many of the statues of the old deities. After the carnage, they claimed it in the name of "Allah", their spook of a God. Its mostly the same thing when they actively went to convert the Iranians, Pakistanis, Maldives people, and many Indonesian folk en masse to their way of thinking. Contrary to what Islamic theology trains its adherents to believe in, there is NO ACTUAL evidence, written or archaelogical, that points to the Kaaba ever having been built by "Ibrahim" at all.