Amy Schumer is letting everyone know where she stands on the NFL kneeling controversy.

Less than a month after she was arrested for protesting the nomination of Judge Brett Kavanaugh to the Supreme Court, the comedian expressed her support for former San Francisco 49ers quarterback Colin Kaepernick through a post on Instagram on Friday.

Schumer said she would turn down offers to appear in Super Bowl ads next year.

“Friday thought,” the caption on Schumer’s post read. “I wonder why more white players aren’t kneeling. Once you witness the truly deep inequality and endless racism people of color face in our country, not to mention police brutality and murders. Why not kneel next to your brothers? Otherwise, how are you not complicit?”

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Friday thought. I wonder why more white players aren’t kneeling. Once you witness the truly deep inequality and endless racism people of color face in our country, not to mention the police brutality and murders. Why not kneel next to your brothers? Otherwise how are you not complicit? I think it would be cool if @maroon5 backed out of super bowl like @badgalriri Did. I personally told my reps I wouldn’t do a Super Bowl commercial this year. I know it must sound like a privilege ass sacrifice but it’s all i got. Hitting the nfl with the advertisers is the only way to really hurt them. I know opposing the nfl is like opposing the nra. Very tough, but don’t you want to be proud of how you’re living? Stand up for your brothers and sisters of color. And the hottest thing a guy can do is get down on one knee. Not to propose but to reject the treatment of his teammates by this country. Anyone who says its disrespectful to our military please read up on the fact that a lot of veterans are proud of what @kaepernick7 is doing and fully support him. What are your thoughts?

A post shared by @ amyschumer on Oct 19, 2018 at 8:11am PDT

She cited those reasons as to why she wouldn’t be accepting offers to appear in ads during one of the most watched sporting events in the world.

“I personally told my reps I wouldn’t do a Super Bowl commercial this year,” she wrote. “Hitting the NFL with the advertisers is the only way to really hurt them.”

Amy Schumer arrives at the premiere of 20th Century Fox's "Snatched" at the Village Theater on May 10, 2017 in Los Angeles.(Kevin Winter/Getty Images) Amy Schumer arrives at the premiere of 20th Century Fox's "Snatched" at the Village Theater on May 10, 2017 in Los Angeles.

Schumer also called out pop group Maroon 5 for the second time for agreeing to perform in the Super Bowl.

"I think it would be cool if [Maroon 5] backed out of Super Bowl like [Rihanna] did,” she said.

The post followed up on a previous one from Thursday -- a screenshot of an article saying Rihanna had declined an offer to perform in the Super Bowl Halftime Show -- in which she said, “Wouldn’t it be so cool if [Adam Levine] and [Maroon 5] stepped down, too?”

On Thursday, Us Weekly reported that Rihanna declined the offer because she “supports Colin Kaepernick,” who hasn’t played a game in the NFL since the end of 2016 season.

It was during that season that he began kneeling to protest police brutality against black people and people of color.

“The NFL and CBS really wanted Rihanna to be next year’s performer in Atlanta,” a source told Us Weekly. “They offered it to her, but she said no because of the kneeling controversy. She doesn’t agree with the NFL’s stance.”

The NFL did not immediately return a request for comment from ABC News.

Amy Schumer walks onstage at the #BlogHer18 Creators Summit at Pier 17 on Aug. 8, 2018 in New York City.(Angela Weiss/AFP/Getty Images) Amy Schumer walks onstage at the #BlogHer18 Creators Summit at Pier 17 on Aug. 8, 2018 in New York City.

Schumer is not the only celebrity to back Rihanna’s decision to back out. On Twitter, multiple celebrities expressed support for the singer-entrepreneur, including actress Jameela Jamil.

“What a powerhouse,” Jamil, who is known for her role in the U.S. on the TV series “The Good Place,” wrote. “Rihanna’s grown into such an important voice for women, for people of color and for body positivity. Turning down a $2M dollar check and all that publicity and the records and clothes and makeup she would have sold off the back of it...is God-Level Boss.”