Gotta love liberal double standards. Radical Islamists aren't engaged in Jihad but the Tea Party are jihadists when they have never killed anyone.
Rigid & irrational faith based ideology is a feature of both groups, along with the notion that the ends justify the means when on a divine mission, particularly the means of hostage taking & extortion. Both deny legitimacy to the principles of Democracy. Both are deeply authoritarian. Both seek to burn down society so as to reform it to their liking.
If you can't see that, it's because you refuse to look at yourself, to examine your own most cherished beliefs.