Well, until islam4UK was banned they were part of the law abiding majority...
The location of a protest is just as important as the message, why else would the fox hunting lobby march through london and not coventry?
History is full of agitators, some good some bad, lots of people would have had Martin Luther King locked up, Nelson Mandela was locked up. We might find their view odious but I find the idea that anyones should have their right to effective legal protest denied even more odious.
Deport them to where? I'm sure plenty of members of islam4UK are British. Nick Griffin is British and he promotes an equaly racist message as islam4UK...do you want him deported, or is it because they look funny?