Aha. Inherently wrong is the thinking that everyone has their choice for self-determination. Look at Islam for example. Their ideology is inferior to Christianity. If you're not sure, look at the fruits of the respective civilizations. Of course, there is hope for Muslims, but they have to evolve from Islam at least to the level of Christianity. If you're not sure, what i mean, i mean e.g. loving your enemy, a big nono in Islam (and Judaism). And it doesn't stop here. Christianity has now also come to its limits. A new truth is dawning in the East: The parental heart of God. So you see, you are free, but you don't really have a choice. The universe is stronger. ;-)

Why the heck stay in the European Union?!

Its member states will inevitably decline, because the leaders in Brussels are very bad people. Thus, a European nation doesn't have to be part of this mad club.
On the other hand, European countries are free to self-determination, and can also forge new alliances. The world is ours!