
White Americans make up 60% of the US population and hold 86% of wealth in the US
For this reason, minorities tend to band together in solidarity
Conclusion: Since White Americans make up the majority of the population and are less likely to fall victim to discrimination, there is generally no "need" to identity to any specific ethnic group beyond symbolic or situational occasions.
Unlike race, it is generally self-ascribed
The difference between race, ethnicity and nationality.
Shared cultural identity, not linked to biology or outward feautures.