If those protesters are marching against the abuses of Sharia law, then they should march in protest in those nations where those abuses take place, not in America where those abuses don't take place. That would be logical, as opposed to your pseudo-logic. But no, those demonstrators, according to Muslim leaders cited in this article, are marching in protest of Muslims in general, especially in the United States, where the SPLC concludes those hate groups are activists against Muslims in the US. Your pseudo-logic leads me to conclude that you either didn't read the article, or didn't understand it.

Here's a question for you - when was the last time Muslims threw a homosexual from a high building in the US, or beheaded one? The answer of course, is never. Sharia as practiced in the US is not against our Constitution.