If everyone is equal and not afraid of being something, there is no day like this needed. But as long as there is a day like this, I guess there is a need for education to change people's mind.
People do not like change and you cannot force people to change. That only creates conflict. So, it is important to protect the people chasing as well as people not changing. Both side of people are people, and people need to be respected.
If you are selling exactly the same product as others, you can only differentiate yourself from the other in
(1) Price (Product, Shipping, Warranty ...)
(2) Service (Reputation or Relationship)
(3) Location (Convenience)
So long as you can differentiate yourself from the other in positive way, you can still create USP. But it will be easier if you have a product that is unique to your company even if it is based on the perception only.