it is definitely sectarian and racist... i am not surprised from those people.. they are the extreme right christians...
they are anti-Muslim and are the ones still fighting for the idea of phoenicians vs arabs issues.. and they refuse to acknowledge that arabic is the official language of lebanon.. this is not an ethnic question, it is simply religious where they claim that their religion is superior to any other and mostly Islam in this case.
this superiority is translated in a racist way as you witness in that thread..