You are labelling a 400 year tradition as being racistic, and clearly it is not to the people who celebrate it.
FORBES: The Unbearable Whiteness of Piet-ing: Dutch Santa's Blackface Elves
And that is not racistic or denying history but it is simple because all coloured people in Netherlands traveled here by own will.
Paint your face black, blue or white is not racistic.
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。