Congresswoman Nancy Mace (R, SC) has introduced legislation that would make illegal formation of House caucuses organized around race, ethnicity, or national origin.

If adopted, the measure would effectively force the dissolution of Democrat-aligned groups, including the Congressional Black Caucus, the Congressional Hispanic Caucus, and the Congressional Asian Pacific American Caucus.
The proposal could also affect GOP-affiliated organizations, including the Black Republican Congressional Staff Association, the GOP Latino Staff Association, and the Republican Asian American Staff Association.

It’s a nice idea, blocking race-based organizations and the like in the House. Mace’s argument is straightforward and entirely legitimate.

Race-based caucuses are not diversity. They are federally sanctioned segregation. You do not get to lecture America about inclusion while running an organization which checks your skin color at the door. The hypocrisy ends now.
It is time to end taxpayer-funded discrimination in this institution[.]

There is, though, no way to enforce the intent of the thing, even were the legislation to pass. The caucuses won’t disappear. The groups will just continue to meet informally in glorified coffee klatches and therewith continue to coordinate legislative proposal and votes. Nothing material will change.