How bad will America be if Trump became president

[Wyrd of Gawd]

Probably not that much different. I'm no expert on American politics, but I don't think Trump will be able to do half the things he says he will.

Oh, it will be different, since Trump will run at least the economy into the ground. He said as much when he bragged about being the master of debt and his intent to use this kind of experience in his presidency. That statement in itself will kill the dollar, if he is elected, since noone will trust an investment based on the currency or backed by the country.

That will shatter the world economy once more, with unknown consequences.

The world economy is going to tank very soon because the derivative market pyramid scheme is going to collapse.  That won't be Trump's, or Hillary's, fault.