So three Islamic terrorists have been found guilty ....?

of trying to blow up several planes from Britain. MY question is, had they been successful, or even having due regard for their crime and trial, do they really think that would have furthered their cause? These people were British and living 'harmoniously' in this country .... but in their hearts, they were clearly neither and had nothing but intense hate and violence for Britain. Can they not see just how damaging that may be for the rest of the Islamic population here .... ? How can we achieve harmony in this world, let alone the UK, when people like this plan to slaughter innocents at a whim? If we are to continue to live alongside and accept an increasing Islamic population, something has to be done. Otherwise the so called hatred will perpetuate and British life will never be the same. Your thoughts please ...