Agree but it's far easier for politicians (May, Rudd, Trump, Turnball, Putin, Netanyahu, Xi Jinping, Mugabe, Zuma, Chan-ocha, el-Sisi, Erdoğan, Khamenei, Maduro - the list is endless) to blame videos on Youtube for radicalising people then it is to tackle the long running political, historical and socio-economic grievances that fuel the fire.