Amy Schumer delivered a passionate speech at the Los Angeles March For Our Lives, slamming politicians for "killing children" and standing against gun reform.

March For Our Lives demonstrations in Washington D.C., Los Angeles, and cities all over United States saw over a million people on the streets demanding for more stringent firearms laws. The movement has been led by the survivors of the Parkland, Florida shooting that killed 17 and injured more.

Politicians Are 'Killing Children,' Says Amy Schumer

Schumer took to the stage and began by thanking the students and other attendees for "standing up and saying 'No more.'" For much of her emotional speech, the Trainwreck star addressed lawmakers, expressing her anger at those who are neglecting the safety of the children and twisting the words of the people speaking up against them.

"How do they sleep at night?" she asks the crowd as seen in a video posted by CBS News. "You are killing children, and they call people like me 'Hollywood liberals' like there's something in it for us."

"What's in it for us, is knowing we're doing our part to keep our children alive," Schumer continues, adding that celebrities such as herself see less support and less profit for voicing their beliefs. "We sell half as many tickets because we're standing up for what's right ... You see that politicians? You can make a little less money and be able to look at yourself in the mirror with no blood on your hands."

She goes on to say that these politicians are too occupied with making money and lashing out at those who stand against them to realize they're actually "digging the graves of the people you are sworn to protect."

"There are plenty of NRA [National Rifle Association] members and gun owners who want sensible gun laws. I applaud them and I stand with them," she explains, saying that she is not addressing them in her speech. "I'm talking to the ones who ignore the halls of the schools filling with blood and tears and pictures of the children who should still be with us."

Schumer has been a very outspoken advocate for gun control since 2015, when a shooting at a Trainwreck screening in Louisiana killed two women, according to The Cut.

Olivia Wilde, Other Celebrities Speak Up

It's not just Schumer who is voicing her anger and disappointment for the lack of gun control in the United States. Fellow actress Olivia Wilde also took to the stage during the March For Our Lives rally to praise the "youth-led movement" and encourage people to vote against politicians who refuse to act against gun violence and racism.

"Apathy is no longer an option," Wilde explains, saying that the mid-term elections are coming up. "Your elected officials work for you. Do not let those who choose to accept money from the NRA profit from your hopelessness or the blood of your peers. Instead, vote them out."

Beatles legend Paul McCartney attended the New York march, saying that he attended the rally because it's what he can do.

"One of my best friends was killed in gun violence right around here, so it's important to me," he says, referring to fellow Beatle John Lennon who was gunned down in New York in 1980.