You said "There are lots of black African tribes who proudly call themselves Arabs and I welcome them as part of the Arab nation" oh ya like the black African tribes of Darfur are "welcomed" as part of the "Arab nation". We already know how Arab nationalism works, there's no need for the painful reminder. Is it any wonder many of the most prominent and popular Egyptians have disassociated themselves from Arabism, from Naguib Mahfouz to Osama Anwar Okasha to Taha Hussein to Akkad and many more. At least so many Egyptians now are finally coming to their senses.