1. We've opted to leave the European Union, which is an economic and political union. We have not given the middle finger to Europe which is something else altogether. If you choose to see it that way, I would suggest it says far more about you than the British nation.
It would appear in the way May is behaving that is exactly what she is doing with the threats over security and us becoming a tax haven.
2. You'll need to elaborate on who your family are here. Are they members of the European (Gravy Train) Bureaucracy? If not, then in what way have they been given the finger?
Perhaps with the huge rise in anti British we have seen post brexit where people no feel free to say "you lost, isnt it about time you went home" and the fact that EU immigrants living here are left in limbo and post Brexit we only want 10s of thousands coming here to work and thats total from the world not just the EU
3. The attitude of Brexit is far from insular. The great irony is that the EU is an insular institution, Britain is the engine of international business and trade. Why do you think the Germans wanted us to stay? Because Britain was a major advocate of free trade and global relationships.