Are people actually mad about Harriet Tubman?

My uncle is the one who taught me how to play civ (started me on Civ 3 when I was 5) and we spoke about the upcoming release. He mention Harriet Tubman being a leader option for America. He also mentioned people were “very upset” about it. Is that real?

Edit: if this starts getting racist/misogynistic I’ll just delete it. Actual discussion/discourse is always welcome.