sorry i dropped the ball here
This is what isn't happening, as so many people have posted on facebook and our internet

I think it's important to remember that the vote was not for bombing Syria, it was for the continuation of air strikes against IS in Syrian territory. The way it was debated in the HoC was more akin to preparations for WW3 rather than giving the green light to a couple of Tornadoes. Like i said above, it makes little 'military sense' to bomb IS in Iraq and then not being able to follow targets over the now fictional border. I have no doubts about not being able to bomb an ideology, but it exists in a vacuum unless it has territory in which it can propose and evidence it. Aerial bombing 'can' act to limit the geographical space an organisation can inhabit, stop it from building infrastructure (as well as destroy it), generally harm its capacity to function with any regularity. It can also help ground troops to take territory - air strikes in Iraq and Syria have been effective in helping the various actors (army, Kurdish forces etc) to take back areas and keep them under control. So i understand the arguments made for it. Of course the difficulty is that significant parts of IS retreat to civilian populated areas / melt into the population (see page 1 'guerrilla warfare'). My other worry would be over committing to something we (the UK) actually has little influence over. IS will be defeated by 'locals' and involving surrounding countries (getting Sunni populations on side). the Gulf, Russia and the US will also play a role. UK are a bit-part player.
To talk about whether we should be bombing them in Iraq - here the Iraqi government requested (through the UN) for military assistance from several different countries (UK included). For the bombing in Iraq has been based in several narratives; self defence ('inherent right' customary int. law etc), and collective self defence on behalf of a state unable to adequately protect itself from an armed attack. Bombing certainly made a difference here - IS were miles from Baghdad (genuine concern) and the Iraqi army had proved incapable of defeating them without the brute air power from the US coalition. More recently Sinjar was retaken by Kurdish and Yazidi forces with help from some pretty unremitting airstrikes. Questions of how we got to this position (Iraq war / organisation post 2003 etc) is another matter.
Your other point - In the short term, the current round of bombing won't 'stop them bringing the fight to the west'. As we saw in Paris, most of them didn't have to bring it far... just across from Brussels. Mere bombing is a blunt tool. Without a wider political strategy (everything from diplomacy abroad to deradicalization at home) would be nonsensical. After all, as Clausewitz reminds us...
war is only a continuation of state policy / politics by other means. War has a grammar of its own but its logic is not peculiar to itself. War can never be separated from political. Should this link be broken we have but a senseless thing without an object.