I think as a country, generally, we support the underdog. Look at the popularity of Rocky in the 70s. When we drop the personal bias we can be fair. There are many on neither the right or left that want to see fairness. Being banned only elevates the feelings by some Americans that this is not fair to the President of the United States. Hence, they'll take his side even though they may not be supporters.

I hear his approval rating is rising!!