Shag dumb invader = collapse of civilization

Look at ancient Greece all those impressive buildings, their rich philosophy and history. What happened to all that and why is it that modern greece is bankrupt and produce nothing of worth.

The answer is that modern greeks are NOT the same people who accomplished all those things but are instead a shorter more swarthy peoples. They are the result of the original greeks shagging arabs, turks and africans....thats why today they cant do jack!

Same goes for ancient egypt, how comes the people we call Egyptians todays mane income is from tourism and cotton?

Well they shagged the nubians, arabs etc and the result is today they cant do jack.

The collapse of all ancient civilizations has been a result of shagging dumb invaders/immigrants.

Why is it that Muslim arabs haven't done anything of note, they are only rich due to oil other than that nothing