This comes up all the time. It was exacerbated by 9/11. It was implanted in U. S. minds that Islam is a violent religion.
I know lots of Muslum people. They insist to a person Islam is a religion of peace.
People who criticize Christianity insist its history is a violent one. Christians claim atheists have no moral values.
We can all make our cases. Nonbelievers can point to the Bible where two million innocent people were killed by God. There were the crusades where employees of the Catholic church killed innocent Muslims.
Christians can point to world despots who claimed not to be religious and who killed vast numbers of innocent people. Atheists can argue these were not employees of any atheist organization, like the crusade soldiers of the Catholic Church, so the philosophy of atheism is not at fault.
Hilter claimed to be a devout Catholic. German Catholic officials are quoted as saying he was one of their own. Whether Hilter was sincere, or, whether Catholic hierarchy felt they had any choice in endorsing him remain legitimate questions.
So, we can only say the two faiths and no faith all have baggage. There is one thing we can say for certain, however.
It is that Christians have no business saying, as they do somewhere most every day, that they have moral creditials while atheists and Muslims do not. There are Christians, atheists and Muslims who have sound moral values and there are those in all groups who do not.