I completely agree with you, those protests were shameful at best, calling veterans "War Criminals" who were fighting so these thankless idiots don't die in bomb blasts saddens me a great deal. You see the problem is that these people are bought over by cheap propaganda of a couple of media hungry fundamentalist organizations, I can break an extremist in less than two hours in a face to face discussion. Seriously, asking for Shariah in U.K ? that is ridiculous:
1) They are the true owners of this land and the Muslims should be comfortable with what they choose to live by.
2) No muslim country other than KSA practices Shariah, then why should non-muslim countries ?
Honestly, the problem with these guys isn't that they are too involved in Islam, it's that they don't know enough about it and believe any half truth a man with a beard and a skull cap preaches to them.
I have had proper religious education yet I don't justify killing, I am friends with at least a dozen Pakistani Christians, when I was in the U.K I used to go to the pub with my friends when they wanted(though I didn't consume alcohol, just a coke), just because you are muslim, doesn't mean you have to take the path that goes against the rest of the world.