How is this inclusive to everyone? The Catholics get mad because it is not a Christmas tree and everyone else does not celebrate it at all.
Shouldn't "diversity" and "inclusiveness" be "I respect your religion, you respect mine" instead of "I shouldn't have to look at your religous objects / you shouldn't have to look at mine, on government property" ?
It's all about Cultural Marxism. The Cultural Marxists want people to believe that the world is divided into two groups, those who are "oppressers" and those who are "oppressed".
Since Christians are the overwhelming majority in America, and in the Western world in general, they fall into the "oppresser" category. Calling a Xmas tree a Holiday tree, or a Xmas party a Holiday Party is a way for the horrible oppressers to reach out to the oppressed.
If you're a white, male, hetrosexual, Christian, who earns a decent living, you are automatically a member of five different oppresser groups.