You are so wrong.
Brexit and Catalan independence bit is just a good old idea of a Nation State. There is nothing new in it. It is the process that was going on in 19th and 20th centuries. At the beginning of 20th century we saw break up of Austro-Hungarian Empire into Nation states, at the end of 20th century we saw break up of the USSR, Yugoslavia and Czechoslovakia along ethnic lines
Global Islam is also nothing new — this is the opposite process that is extremely old (it was part of Islam and Christianity since their invention). Communist ideology in 20th century simply followed the same pattern as Christianity and Islam followed.
EU is following the same old idea Roman Empire had or the USSR had, but it will never achieve its aim of creating a pan-European state for a simple reason of it not being able to use enough force and violence to sustain it.
There is no new thing under the sun (Eccl 1:9)