The nationwide rallies, dubbed the "March Against Sharia", coincide with the Muslim holiday Ramadan and are sponsored by ACT for America, an organization with chapters around the country that calls itself "the NRA of national security".
There was a heavy police presence on either side of the street, both on foot and on bike patrol to keep the peace, with each side pushing its own agenda. Muslim man, Jewish woman pray together in Manchester tribute " A lot of Muslims follow Sharia law and that's a scary thing for Americans because our rule of law is the U.S. Constitution", anti-Sharia activist Georgine Scott-Codiga said.
The Pennsylvania State Capitol on Saturday was the scene of tension as two groups separated by police and ideology shouted at each other in protest.
CIDI Founder Regina Mustafa said those protesters are marching against something they don't understand.
While many Muslims liken Shariah to other religions' laws that guide the faithful but don't supercede the rules of secular societies in which they may live, some states have been concerned enough to pass legislation prohibiting the use of foreign law in state courts.
He said "we're here because ACT for America planned an anti-Shariah law rally and it is a very veiled attempt at an anti-Muslim rally and we're here to oppose hate and bigotry in our community".
According to a Washington Post report, about three dozen ACT protesters, some dressed in fatigues and carrying American flags, gathered in downtown New York City.
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Cathy Camper, of Tacoma, Wash. wears a stars-and-stripes cowboy hat as she protests against Islamic law at a rally Saturday, June 10, 2017, in Seattle, as counter-protesters demonstrate across the street.
"We all need to unite to get something done in this country". In June 2014, she has said that a cancer called "Islamofascism" permeates a Muslim world in which "extreme is mainstream".
Counter-protesters said the rally was stoking unfounded fears and stirring racism.
Competing rallies about Islam, particularly the religion's rules known as Sharia law, evolved from peaceful marches to shouting matches near the beach in Oceanside on Saturday.
"This is a movement that opposes Sharia Law and oppression and is for human rights", says Ximena Barreto, who says she organized the march in conjunction with Latinas for Trump and ACT for America and Republican Woman of Oceanside. "That doesn't mean we allow it today, too", he said. "Laws are amenable to change", Takim said. "There's an anti-Trump, a pro-Trump, anti-extremists, so there are a variety of messages here", San Bernardino police spokeswoman Eileen Hards said.
"I would say I follow Sharia law in day-to-day life, and it doesn't run counter to the Constitution", she said Friday.
The marches come amid a rise in reports of anti-Muslim incidents in the USA, including arson attacks and vandalism at mosques, harassment of women wearing Muslim head scarves and bullying of schoolchildren.