I've read Murray's book (The strange death of Europe) and it's a very uncomfortable read. I found my mind trying to play down his arguments at every opportunity. But I think this is exactly what he is trying to warn us about doing.
We are told in the West that regardless of race or religion we are all basically the same and share the same hopes and dreams. I think this rosy idea can blind us sometimes and the reality, although nowhere as dark as the right would have use believe, needs to come back to the centre a little.
Murray argues that there is an expectation that young men of a low education coming to Europe from the middle east and sub Saharan Africa will somehow overnight become European and fit in. This is naive and as we have seen many European countries now give migrants and refugees information packs and education on how they should conduct themselves especially around women. As much as we don't want to believe it, there are cultural differences that can cause us problems.
Pointing out and discussing how we tackle these cultural differences I'm afraid is the only way to solve it. It's no individual persons fault that they come from a country that conducts it's self in ways we find unsavoury. If you grow up in a certain culture you will carry that culture with you. This is not your fault, but it's also not the responsibility of the innocent people of our culture to have to pay the price for it.