zahavasdad,
“Exactly how Sushi is related to Smartphones is beyond me”
I think the opposition to sushi is not because it was a food that our ancestors didn’t eat, but because it’s a symbol of secular hipster “foodie” culture, which some feel is not good for spiritual growth. Personally I think sushi is common enough nowadays (most grocery stores carry pre-made packages of it – certainly not “hip”) that it doesn’t really make a cultural statement anymore.