I have often said that at some level individual bigotry and racism exists. It is illegal and companies that practice it are subject to being sued and fined. I support those things. We cannot stop bigotry, but we can make it illegal in the marketplace, the workplace, society in general. And we have.
With regard to names, several older studies do confirm what you suggest regarding names. Interestingly, they show far more bigotry towards names than skin color or ethnicity. So, LaShonda Brown in your example is more likely not to get interviewed, but her twin sister, Susan Brown will... even if both are identical twins.
One study attributed this behavior to the fact that "Sue Brown" is communicating that she is fully integrated into our society and LaShonda Brown is communicating she comes from a family that identifies as "black". Many Asians have figured this out and use American names when applying for jobs (not to mention, many of their names are hard for Americans to pronounce.
My wife has is Asian and uses a shortened version of her name that is easy for Americans to remember and speak. My daughter in law is African and uses a shortened version of her name, even though it is English, it isn't one Americans are not very familiar with... but the shorter version is one they seem more comfortable with.
The demographics of this country are changing rapidly. Where I live in California, traditional European whites represent about a third of the population and are the second largest minority. Hispanics (mostly white) represent the largest minority. After than I believe East Asians are the next largest minority. And then comes mixed race, blacks, and other whites (not quite sure the order).
I do not dispute your statements at the anecdotal level. But at the macro level, studies show that black are more likely to be employed than whites if they have college degrees (by a very marginal percentage) and earn around 1% after adjusting for variables unrelated to skin color (like age, region of the country, education). So, at the big picture level, the reality is our society is doing a pretty darn good job of keeping systemic racism out of the workplace.
Where we are not doing a good job is addressing cultural and educational issues facing children especially poor children.
https://nces.ed.gov/pubsearch/pubsinfo.asp?pubid=2015018
While people were quick to point out that black children were underachieving because of lack of funding for public schools in poor communities, the charter school founded by my brother receives less funding than the community public schools and yet his students perform at levels comparable with the mostly "white" suburban schools. Likewise, Asians in underachieving minority dominated public schools manage to excel.
https://studentsforfairadmissions.org/asian-students-excel-because-of-hard-work-not-rich-parents/
We can keep looking for excuses, but among all the other ills of identity politics and intentional racism is the reality, that some cultures promote values that simply are incongruent with success in America. Whether you are a white child growing up Appalachia or a black child growing up in the inner city, your chances of success are relatively small compared to Cuban child growing up South Florida, the Chinese child growing up in a poor neighborhood in California, or the child of Nigerian immigrants in New York City.