Civic nationalism, also known as liberal nationalism, is a form of nationalism identified by political philosophers who believe in an inclusive form of nationalism that adheres to traditional liberal values of freedom, tolerance, equality, and individual rights.
Or:
Ethnic nationalism, also known as ethnonationalism, is a form of nationalism wherein the nation and nationality are defined in terms of ethnicity, with emphasis on an ethnocentric approach to various political issues related to national affirmation of a particular ethnic group.
Traditionally, or at least overtly, the US has been a Civic Nationalist state. Columbus Day, unlike the 4th of July, Presidents’ Day, Memorial Day, etc. doesn’t serve that tradition. As certain forces have worked to shift the US to become their ethno-religious state, the issue went into heat.