For all the times I've watched CAIR representatives given mucho face time on Fox News, I've never seen them taken to task for the stuff Schumer mentions.
Welcome to the New Reality.
Rule #1: We (conservatives) Shall NOT Offend Muslims.
Period.
The GOP all grew up in nice middle-class homes where it wasn't considered "nice" to say unkind words about groups. We bought into the liberal schtick about bigotry completely--but the Left has no such compunctions.
When they identify an enemy--such as the VRWC--they go after it. Schumer, an ardent advocate for Israel, can tell the difference between a peaceful religion and religious fanaticism.