I think you are onto a real problem, but I actually disagree with some of your proposed solutions and assertions.

A lot of the people talking about terrorism are not willing to honestly talk about a huge part of the equation which is Islam. It's very important to acknowledge that Islam is full of teachings about violence, about the inferiority of the infidels, about the inferiority of women under men and a lot of other deplorable ideas. Let's not forget that this is a religion which plainly says that the punishment for apostasy should be death. Blaming terrorism on purely social issues and omitting religion is absolutely unfair.

But I disagree with the proposed solution that all Muslims should be banned from entering a country just based on their religion. This is discrimination on the face of it and it should be abundantly clear that there is a large number of Muslims around the world who have integrated into western society relatively successfully and have nothing to do with terrorism.

In the end, Islam is not the only religion full of violence, discrimination and misogyny. Christianity may have become tamer, but we have seen Christian terrorism, too. We've seen Christian communities opposing social progress as well. Swap the Muslims from your suggestion with Christians and you would see why this approach would be viewed as appalling by many. I will happily concede that Christianity is currently responsible for much less violence and terrorism than Islam, but I think we can still draw a parallel and it's still a religion capable of inciting violence. But you cannot punish all members of a religion for the crimes of others. Don't forget that many of the Muslims moving to western countries are doing so to escape the overreaching Muslim states they are living in and they are willing to integrate.

The problem with terrorism is that it's extremely hard to stop. There is always a way to infiltrate a country and when you target soft targets, no country has enough security resources to make terrorist attacks impossible. It's easy to suggest banning all Muslims to protect ourselves from terrorism, but in my opinion, that would by no means be fair and on top of this, would not work that well.