Completely Un-identified.

   Personally, I do not believe it is possible to be un-identified in the United States.  Even if a person does not bring it upon themselves to be in a category, they are still categorized by the people around them.  In an ideal world, being un-identified would have a lot of pros.  An unidentified person would never have to worry about judgement or stereotypes, eliminating that category of tension from the mind. As a person not bound by stereotypes, one can flourish into anything they desire to pursue in life because nothing would be holding them back.  Furthermore, as a person not identified, they could assimilate or fit into any group of people, while ultimately not being held accountable for representing that group for their life.  On the other hand, not being identified has cons as well.  Being in a group of people, most often similar to yourself whether it is interest or race, creates a security blanket of confidence.  Without that group support, or sense of belonging, a person can easily lose that mental strength and backing.
    If identity was based on personal interest, and people were grouped according to their interest rather than race and ethnicity, identification would be much more effective in a positive light.  Do you guys agree with me? Or do you believe that no sort of identity is better?

3rd Rock from the Sun, Performing Ethnic Identity

Much like Dick's observations of people in order to find his own ethnicity, I would approach the situation in a similar way.  In order to find my ethnic identity, I would find a person that I admired, or was fond of, and attempt to learn and imitate as much of their culture as I could.  However, in 3rd Rock from the Sun Dick was unable to recognize phenotypical traits such as skin color.  If the same incapability applied to me, it would pose a greater challenge of understanding and finding my own ethnic identity.  Not being able to distinguish phenotypical traits limits the races that I could chose from, but I wouldn't be able to understand, much like the young boy on the show who tried to tell his classmates he was Korean and African American.  

Another major challenge while learning how to "perform" an ethnic identity is learning about all aspects of ones ethnicity.  You have to understand the food, traditions, and possibly the language.  From personal experience, growing up in a house of foreign parents, customs, traditions, and language have been ingrained in my mind since before I can even remember.  On the other hand, if someone was trying to pick an ethnicity, like Dick, learning traditions, customs, and language is a large task at hand.  Picking and learning an ethnic identity would seem like a full time job that would take a tedious amount of time.  

Overall, learning to perform and ethnic identity seems like quite the challenge, but is learning and performing an ethnic identity for someone like Dick that important in our society?  Does Dick really need an ethnic identity to continue his life on plant Earth?