You're in for a couple of very rough years economically - and that's before we consider possible external shocks to aggravate the situation. I can name about several that aren't all that unlikely: Trump winning, Chinese banking crisis explodes, Greece does something stupider than usual, the instability in ME takes a drastic turn to the worse, Kim Jong Un does something very stupid involving fissile material, Putler acts up again in a much more severe way than usual, etc.
Assuming that we push the Brexit button in the next few months, another Greece is less likely to be a shock to our national system than it would be if we weren't on our way out of the EU. This is one of the reasons to leave the EU.
Also you can bet your arse that if anything major league serious happens in the world on the lines of the ME blowing up, or Korea getting all nuclear that we'll drop our petty squabbling for a while, unite against a common enemy and deal with it.
Your missing out on possible Doom too. A large natural disaster would also upset the apple cart, another Tsunami, massive hurricane or a near Earth asteroid strike.
If my view is too rose tinted, then your view is too pessimistic. So the reality will probably lie somewhere between the two, would you agree?
Do you know what the saddest thing is in all of this?
The biggest news story right now in the world today is that the Juno NASA probe has achieved stable orbit of Jupiter. That's a staggering technical accomplishment and the papers ought to be full of space stuff. Instead they're full of political stuff.
We need to do more, a lot more, of these big space exploration type of things. Humanity is at it's very best when it co-operates to put people on the moon, or rovers on Mars, or Probes around far flung, and poorly understood planets. We need to put people on Mars, establish a permanent moon colony, look on Europa and in other places for possible life in our solar system. Missions like Juno, if they are given the media hype that they deserve inspire whole new generations of people to become astrophysicists, or engineers, or biologists etc etc
How many genius scientists, that could have perhaps figured out a much more efficient solar cell or how many superb school teachers that can inspire our children have been lost to the world, because they ended up becoming finance wizards instead, as that's much more lucrative.
We all spend far too little of our collective national budgets on space exploration, and science, and devote far too few pages of our media (and our internet forums) to the same.
The world has got it's priorities wrong, and that's a much, much harder problem to fix.