The important thing here to bear in mind is that the IDF soldier didn't have to mention that he's actually a soldier or that he was representing Israel in a competition in order not to be discriminated against. I personally would've told them: So what if I'm an Arab? Israel repeatedly tries to sell itself as the only democracy in the Middle East, but somehow this doesn't apply to its Arab residents. All animals are equal but apparently some animals are more equal than others.
Twin bombs kill around 10 and wound 100 in Cameroon town (Reuters)
from the article: IDF soldier with Arab-sounding name accuses El Al of discrimination