> How many people in European states will openly speak of certain groups, like gypsies, muslims and so forth with extremely derogatory words, but barely be called out on it by anybody?

It might be hard to find statistics, but I think we shouldn't just give up and rely on anecdotes. For example, a 2017-2019 Pew Research Center survey[0] found that people in the U.S. were somewhat more willing to accept Muslims as neighbors and family members than the Western European median.

[0] https://www.pewresearch.org/fact-tank/2019/10/08/in-the-u-s-...