Why is the message "it's okay to be white" controversial?

You'll probably be aware of the intention with the flyers, maybe even taking it over here to spread the shitstorm.

[quote][b]About[/b]
“It’s Okay to Be White” is a slogan launched on 4chan as a “proof of concept” to demonstrate that signs with the phrase posted in public places would be accused of promoting racism and white supremacy.

[b]Origin[/b]
On October 23rd, 2017, the STOP/RESET YouTube channel uploaded a segment aired by the Boston television news station WHDH, reporting that police were investigating if white supremacists had placed signs featuring a picture of Uncle Sam with the caption “I want you to love who you are / don’t apologize for being white” at Boston College campus (shown below).

Starting on October 31st, 2017, posts began circulating on 4chan calling for viewers to place posters with the slogan “It’s Okay to Be White” in public places as a “proof of concept” that a “harmless message” would cause a “massive media shitstorm.”

[i]Source: http://knowyourmeme.com/memes/its-okay-to-be-white[/i][/quote]