No, bitcoin is no more popular than the US Dollar. We all already know that bitcoin is still popular and many people do not know bitcoin. In contrast to the US Dollar which greatly affect the price of other currencies. US Dollar is very well known to many people even around the world. US dollar is still more popular than the bitcoin.
I can't disagree with that. Certainly, Bitcoin is now less popular and, by the way, a lot less legal then dollar. However, we may say that it is potentially more popular then dollar if we believe that the era of bitcoin will come in the near future along with death of USD.