“Islam maintains that its adherents have the right to kill: non-muslims at will during Jihad, anyone who dishonors them (honor killings - as recently happened in California), or any apostates to their religion. This is dramatically at odds with, not only the legal system and cultural values, but our Declaration of Independence.”
I don’t know whether the first sentence in the quote is right or not. Some Muslims argue that this is only true of some fanatic factions. O.K., but even if it is, is it Constitutional to outlaw a religion? The closest parallel to this situation I can think of is a cold war era opinion from the Supreme court concerning whether the Communist party USA should be outlawed on the grounds that it advocated the violent overthrow of the U.S. government. The Supreme Court argued against the outlawing on the grounds that, .... are you ready? That advocating the the violent overthrow of the U.S. government is protected under freedom of speech. However, taking any action to overthrow the US govt, including specific planning or conspiracy, is illegal. So just substitute Islam for the now defunct Communist party USA and the year 2010 for 1955 and you have the likely Supreme Court reaction to an effort to outlaw Islam in the USA.
All I can say is be careful of what you wish for. It’s Christianity that religion haters in the US and their lawyers have set their sights on. It’s Tres Cruces New Mexico that they’ve tried to force a name change on, not La Crescenta, California. Even if it were permissible for a religion to be outlawed in this country, Islam might be the last one to go
Islam enters into nations as a religion but is actually a politcal movement. Muslims and clerics will target anyone who criticizes them, and does so agressively. This is no religion of peace. And don’t believe the propaganda about jihad being about an inner struggle, it is not. Christian converts from Islam have told me that is a bunch of crap - jihad means killing infidels for establishing Islam world-wide. Period.