It would give us a sense of national pride
You can still have national pride within the EU.
Result: Neither
So how would leaving the EU will help?
Please, let me know, I'm genuinely interested.
Personally I'm proud of who I am, and what I've achieved. I don't really think about where I'm born, or where I live. Maybe it helps that I work with people from all over the world, and I'm recognised for what I do, and what I know.
If you disagree, or would like to add more details, please let me know.
You can suggest a reason for leaving the EU, or look at the other reasons.