I share a name with a published author. Thus I use a variation of my name to post comments on your blog. I know that I will have to correspond with industry professionals by my given name. Should I also make it clear publicly that the blog name is my pen name?
Thanks to the white guy who used a Chinese pen name to publish a poem, I am a little worried that any obfuscation of my very white ethnicity is going to cause problems. The name I have chosen could lead people to assume that I’m not white. Should I be concerned?
What people assume about you is their problem.
There's a hilarious episode of Seinfeld about this exact situation.
When you query, you'll mention your pen name...or not. There's a blog post on how to do both.
I find it hilarious that people are upset that someone adopted a "Chinese sounding name" to get published, when any survey of published works will tell you that the best way to get published, hands down, is to be a middle-aged white male.
That said, when anthologies or calls for submissions specifically say "we're looking for diverse voices" you can err on the side of good manners by telling them while you, yourself, are not colorful, your writing is.
The true problem with diversity is that not enough non-white, non-males are sending in work.
When you ask a newspaper's op ed page editor why so few women are published, they'll tell you it's cause 85% of the submissions they get are from men.
We need to do better on the ground floor: getting young writers of all colors and genders to send out work.
If anyone is interested in supporting that there are some great places to do so.
Girls Write Now is one
Afghan Women's Writing Project is another.
I'm sure there are more and the commenters will provide us with info.
But the best way to support diversity in publishing is to buy and read writers who are non-white, and/or non-male. It's not enough to say "I read regardless of color and gender." You have to actively seek out new voices. Your librarian can help you. There are some amazing writers out there you haven't heard of yet. And just wait till you see what I've got coming up the pipeline!