Yes, it is necessary for Christians to work to limit the liberty and power of non-Christian religions in the United States of America by social pressure and federal, state, and local laws.
Religious liberty in America is what gave us home-grown Islamic terrorists who bombed American citizens in the Boston Marathon.
It is important to protect the Christian faith. In order to defend the Christian faith effectively, it is necessary to bully Islam, Judaism, and other religions that pose a threat to Christianity. That is what Jesus Christ did.
Jesus Christ fought religious leaders of Judaism and tried to curtail the Jewish religion, thereby setting the example for his disciples to limit other religions in society, even by openly arguing with other religious leaders and bullying them in public. See the video above. More importantly, read the Gospels to see how Jesus Christ bullies the Pharisees and the Sadducees and the Jerusalem Temple priests in public. Jesus Christ worked against religious liberty in society. What would Jesus Do? WWJD? The Gospels show us what Jesus did to other religions!
Religious liberty for non-Christian religions will degenerate society, cause instability in America, and endanger American citizens.
Muslims in America can get all political to try to gain acceptance and dominance in the USA, just like in England, but see what is happening to London because of tolerance of Islam and other religions.