How did a thread about Congress become about the murderer George Zimmerman?
Is it somehow related to pointing to the historic event increased diversity in Congress is considered racism? Let me guess, someone said, "Why is it when we salute and cheer on the accomplishments of white males, it's called racism?" Maybe because that is not an accomplishment, maybe because there is nothing historically holding them back. Why would you need to point out the presence of white males? Is the argument that you should be able to simply swap terms and it means the same thing? Well, it is not the same thing because that ignores history.
An all-white country club isn't pointing to anything new by highlighting a new white member; however, they are by integrating and admitting a new black member. This is important historically, and also because it's just a fact, since these institutions were all white and male due to de jure and de facto discrimination. It is historic when people that were previously discriminated against can now be part of something they were excluded from, you know, like women and people of color. Women only got the right to vote less than 100 years ago and African Americans did not functionally have the right to vote until the late 1960s (1870 doesn't matter when you're murdered for casting a ballot). The fact that these groups that were discriminated against are now leaders Congress is important to highlight. That someone wants to complain because white males are not being highlighted is laughable because please tell me where in history white males have not had the right to vote or run for office due to their skin color?
Swapping terms isn't equal because the history isn't equal.