I strongly suspect you are just trolling but to take it once more from the top
there aren't 24% who feel that the cartoons justify violence - in the NOP pole (for channel 4 dispatches) NOP charecterised 9% of those they interviwed as hard core islamists who believe terrorism is justified (source
http://ukpollingreport.co.uk/blog/archives/291 ) - those 9% are clearly extremists and ergo not moderates. In the smaller BBC poll 24% disagreed with the statement that "such violence can never be justfied" (source
http://www.bbc.co.uk/news/uk-31293196 ) - these people are not all necessarily extremists because "never" covers a lot of ground - that poll also found that 95% feel loyalty and 93% think that they should obey british laws ... I would thus say that the other 7% of the BBC poll are the extremists.
In short a moderate of any persuasion is defined by the OED as someone who is not a radical, and does not hold extreme views - in this context I would charecterise extreme views as believing that they shouldn't obey british law or that their loyalty is with IS/AQ rather than with Britain.
It is worth noting that some in Britain First also don't seem to believe that they should obey british law when it doesnt suit them , and are therefore just as bad as those they oppose.
Extremists of all hues are dangerous, and rightwing extremism is just as dangerous to society as extreme islam