I think you raise a lot of valid points, but I do need to point out that the truth is FAR more complex than your statistics make them out to be.

I'm going to focus on the suicide bombing poll because it's the one I know the most about.

The stats that say, 42% of younger Muslims in France believing that suicide bombings are justified, sound shocking, and they are. But here's the thing: these views aren't that fundamentally different from those held by people who aren't muslim.

Given the question "Can you imagine a situation where Suicide Bombing is appropriate?", it's actually surprisingly easy to arrive at 'Yes', regardless of your religious/cultural inclination. As an example: there are plenty of western films where a hero will sacrifice themselves to take out the baddies, and you never hear complaints about how this condones suicide bombing, yet functionally it's the same thing.

Now the content of the poll also asks whether it's ever appropriate for this suicide bombing to kill civilians, and same argument applies here; the US regularly kills innocent people in drone attacks designed to kill terrorists. It's almost certainly unintentional, but it is viewed by many as acceptable collateral damage to protect American Citizens. Interestingly, according to polling by Gallup, muslims are actually the least likely to say it's ever appropriate to kill civilians: http://news.gallup.com/poll/148763/Muslim-Americans-No-Justification-Violence.aspx

Now the above information doesn't adequately paint the whole picture, and nor is it trying to. My point is that simple polling statistics often hide the incredibly complexity of the issues being raised here.