Agree but depends who you're talking about here. We started off talking about the responsibility of the wider muslim community to do more but now we're talking about the 1% who want to blow the world up.
The average muslim does not denounce this country as evil. The vast majority of muslims dont hold muslim states on a pedestal. Far from it, they wish our governments wouldnt prop most of them up. The ppl you're talking about - that 1% -we can all agree about. This is about the 99% that seem compelled to be under the spotlight while living a perfectly normal life.
There is a problem within the wider muslim community which is limiting progress. BUT this is a cultural problem. I can tell you somali, arab and indian muslims tend to be more progressive and willing to integrate than pakistani muslims. By the way, the segregation and integration of communities is as much a fault of white folk as it is subcontinent and african ethnic folk. They may choose to move to areas where there are ppl that they can relate to, but at the same time you see white ppl also moving out of those areas at the same rate.
Going back to your point, I think in any free society you can choose to live your life how you please provided it doesnt infringe upon anyone else. Muslims have that right also. There are elements within our culture that doesnt suit their lifestyle and that they distance themselves from. Drinking being the best example. That's their choice. They eat food which they bless (halal) that's their choice. They're not breaking the law. Some wear attire that also seems different to ours. But once again, perfectly acceptable in a free society like ours. I know plenty of muslims who live their life like this and yet are the most well adjusted British ppl I know. Many of these also have real issues with British and foreign politics. Some I've come across hold strong views. All of this is no different to the black community in the 70's and early 80's. Where the problem lies is that tipping point where that 1% crosses that fine line between all the things I've said above to the person who decides to take matters in to their own hands and turn militant. But as I said a few pages ago, the families and wider communities don't know about it until it's too late. So all you can do is take a pragmatic, holistic long term approach to educate much like you would to tackle any grooming process.
Another way to look at it is like this. On the one hand you question why muslims feel some allegiance to their "brothers". Yet when you talk to your average muslim, when they turn around and say "listen these ar5eholes have nothing to do with me or my faith" you say to them, but they're your brothers! You need to do more lol. The irony is that those who dont see themselves as having any allegiance to the fcktards are now the ones being told that they have some responsibility for them lol. They cant win either way.