What is the theme?

Elizabeth Warren uses her DNA as a scientific basis to prove who she is.
An entertainer makes a video to promo an new album of himself in the oval office he made it 100% clear not as a President. Why would anyone waste time and money to make a video of them self in the Oval Office and not use it as a:
If I were President this is how I would conduct myself.
Now it has been firmly established DNA does not determine how ethnic groups are identified. When will the dynamic shift in conversation begin?
Entertainers don't want to represent leadership.
DNA doesn't determine eligibility.