Why Columbus Day Needs To Stay

Two years ago, the town of Wellesley approved by a narrow margin a proposal to call Columbus Day "Indigenous Peoples Day." And, unfortunately, this woke move is being repeated throughout the Commonwealth and the nation.
Wellesley is one of the wealthiest towns in America, as measured by average household income income. So why would progressives and liberals want to attack and denigrate the civilization that has given them such an enviable lifestyle and so many benefits?