@ John of arc No offense, but how feasible do you think your approach is? Have you considered the potential repercussions to UK employees?

The USA has some similar policies to the ME in terms of certain categories of ownership, and it was the main reason Rupert Murdoch acquired US citizenship; he could now legally bypass some of those stringent rules and continue expanding his empire.This would mean the UK would have to also add the USA to the 'no selling list' along with the ME nations. Just the withdrawal of US investments alone on a tit for tat basis would have a huge impact on the UK if they were to implement what you are suggesting. Do you know how many UK citizens would be affected by such an action?

You can't expect foreign commercial laws/policy considerations to be finely tuned to your own national laws/policies, that is just outlandish and an unrealistic approach to the issue. More importantly, you can't expect your politicians to take actions based on 'your feelings'. The reality is Qatar and the like can afford to limit foreign investments in certain sectors and still maintain it's economy whereas the UK can't afford to do that.