@chojinra
There are differences between salad bowl of races and melting pot of cultures as both of them are example of racial integration model.
Melting pot of cultures basically people from various cultures dismantling their identity and assimilated into one, which created 'American' society. Salad bowl of races in the other hand is a model of people from various cultures maintaining their identity, hence the 'salad'.
I think the translators are just keeping their faith on original raws, which is fine for me.
I also want to use this opportunity to call out every new yorkers here that the way you ate pizza are nasty! Who tf ate pizza folded?