I understand the religious liberty argument, and I believe we are blessed more than we may realize by said liberty. However, I also believe that liberty to the extreme is a curse, a trojan horse if you will, that extremists utilize to promote their ideologies.
The real truth is that Islam IS a religion of HATE. No other religion calls for the death of non-believers as does Islam. At least 30+ times the Koran calls for the death of Infidels (which is anyone who does/will not convert to Islam) True muslims, (those who truly follow their holy book and its teachings) have to believe that we are all infidels and as such should be killed.
IMO religious liberty ends when a "faith" calls for the murder of those who do not believe what said group believes. Regardless of the religion (i.e. white supremacist, etc.)
Here are a couple of clips that I think are worth seeing.