I don't think they'd be too happy living under the Mosaic law either. Have you ever read it? (Hint, it's in the Bible). Now ask yourself this question. Just how would "Sharia law" be implemented in the U.S.?
You bring up Mosaic Law. The difference is Mosaic Law is not being supported by large segments of Western Society and spread to Muslim countries through political activism and agitation.
It's not being advocated in Western countries like Sharia is in some Muslim majority countries. Even most hardcore church-going Christians (a small minority of the Western population) don't even know what Mosaic Law is.
Do I thin Sharia law will be imposed in the US? That's not the point. My point is that I'm opposed to Sharia law, and so should all libertarians.
I don't think Sharia law could be imposed any time soon in the US. But as in all politics, activists will work to have certain allowances and exemptions for Muslims.
However agitators are pressing in many countries throughout the world where it is likely to be imposed.
Top 10 Sharia recent headlines from *this week* only:
1. Pakistani government does deal with Taliban on sharia law
2. Rally for Sharia law in Somalia
3. Aceh's Sharia Law Still Controversial in Indonesia
4. Islamic bank injection to help Sharia-compliant products (FT Advisor)
5. Sharia rules makes Islam 'a laughing stock' Jakarta Post - ‎Aug 24, 2010‎
The sharia-based rules in Cianjur, supported by 35 Islamic organizations
6. Bid for Sharia Court in St. Petersburg Fails (The Moscow Times)
7. Young lovers killed by stoning in Afghanistan
Los Angeles Times - Laura King - ‎Aug 21, 2010‎
Even as hard-line village mullahs loosely aligned with the Taliban seek a return to the harshest forms of physical punishment permitted under Sharia, .
8. Al-Qaida in Yemen: Poverty, corruption and an army of jihadis willing to fight
The Guardian - ‎Aug 22, 2010‎
In 1994, he said, they had been given promises by President Ali Abdullah Saleh that he would implement sharia law and form an Islamic state, .
9. Kazakhstan bonds with Sharia-compliant finance
10. Malaysian civil servants evicted for 'immoral acts'
AsiaOne - ‎Aug 23, 2010‎