National sovereignty is often shown as a symbol of power and independence in political cartoons. It might be represented by a large flag or a strong leader protecting the country's interests.
SpongeBob SquarePants and Patrick Star have somewhat similar looks. They have big eyes and simple body shapes. Also, their personalities complement each other, which adds to the similarity in their overall appeal.
I'm not really sure what you mean by 'old devi cartoon'. Maybe it's a specific type of old cartoon featuring a character named Devi, but I need more context to be certain.