This is not a general rule in the U.K. If you Google search "Egyptian AND UK University" you will find a list of many universities who welcome Egyptian students for study. You can apply to one of them. I hope that helps. Please leave a positive rating so that I am credited for my time.
It depends. Which university has refused you and what is the reason?
That is a breach of section 91(1) of the Equality Act 2010 and would be actionable unless they have a reason to justify their decision.