A screenshot of the principal's Facebook post. Courtesy the Chang.org petition.

A Seal Beach elementary school principal is under scrutiny today over a Facebook post condemning Nike for its decision to run an ad campaign focusing on dissenting quarterback Colin Kaepernick.

McGaugh Elementary School principal Roni Burns-Ellis posted a photo of a Nike T-shirt cut into pieces on her personal Facebook page and wrote, “My newest rag! When Nike signs an anti-American thug to represent their brand, I will not support, wear, purchase or endorse their product,” the Orange County Register reported.

By Thursday morning, more than 450 people had signed a petition on Change.org demanding Los Alamitos Unified School leaders “act civilly, treat each other with respect, and not engage in name calling.”

The petition included a screenshot of the post, which has since been removed from Facebook.

A screenshot of the principal’s Facebook post. Courtesy the Chang.org petition.

“As our country has become divided and name calling and hate have become normalized, we were particularly disheartened by her comment on Facebook,” the petition reads.

Kaepernick has come under fire, most famously, in tweets by President Donald Trump, for taking a knee during the national anthem at football games to protest police brutality against African Americans.

Los Alamitos Unified School District Superintendent Sherry Kropp told the Register that Burns-Ellis’s stance does not reflect the district’s.

“One person’s personal opinion on a personal Facebook page does not represent the values of our district,” she said.

“We’ve worked really hard to be inclusive and we care about each and every one of our kids,” Kropp said. “What we don’t want, then, is somebody posting something that, right or wrong, undermines our great work.”

She added that Burns-Ellis is a “spectacular principal” but that “doesn’t mean I don’t take the concerns of upset parents seriously.”