The blog, love and rage media claims in reference to ACT! for America's leader, Brigitte Gabriel:
The march was organized by ACT for America, one of the largest anti-Muslim groups in the US, whose leader says that “all Muslims are radical Muslims”. Many marches ended up being small rallies characterized by an overwhelming presence of counterdemonstrators. Syracuse was no exception, with numbers of antifa peaking at nearly triple those who attended ACT for America’s event.
Has Brigitte Gabriel ever claimed that “all Muslims are radical Muslims”?
I google about that and looked into her SPLC profile which doesn't have any info on that quote. Her Wiki page also doesn't comment about that quote.