Most Arabs in their media and discourse refer to it as the occupation or the enemy. We see them as temporary visitors like the Crusaders or Mongols. We don’t see them as a part of the region.
Them not being part of the region doesn't mean they don't exist.
I fully support the Palestinian cause - I'm Irish, so that's not a shock - but the quotes just looks petty and childish, like the Americans still saying "Drumpf".
Acknowledging something is real is probably the first step to dealing with a threat.