when economists warned that we should not permit it
Generally economists say that you don't get back the lost GDP, you just rebuild from the lower base
Which economists are these? You portray economists as though they hold the same views. Explain what Robert Lucas or other supporters of Rational Expectations theory say about your assertions.
Your assertion that you don't get back lost GDP doesn't make any sense since GDP is a measure of total output. GDP doesn’t lead a physical existence. How, for instance, would one get back forgone services, which, of course, represent a pretty significant proportion of US GDP?
As to state laws that shouldn't have been permitted, well, how does that work? The laws exist and must be followed. I'm not sure what "we shouldn't have permitted them" even means. What does that mean? And will the laws change?
You've seen the charts, and it's true, the country as a whole fares better under the Democrats.
What are "the charts"? I've seen so many charts, graphs, and tables of economic data that I can tell the difference between raw data, and small chunks of data used specifically for political purposes. Here's a long-term graph chart of real GDP per capita growth from 1871 through 2009. It basically reinforces what Milton Friedman demonstrated in the 1960s regarding long-term growth. Contrary to what politicians and their most ardent supporters wish people to believe, real economic growth generally proceeds apace with little regard for which party controls Congress or the White House. That’s not to say that policy doesn’t have an important impact, especially during the worst of times, just that it’s hard to argue, based on basic national income accounting data, that either party has the magic elixir for the economy.
Now, if you want to get into fiscal policy specifically, well, there both parties have their glaring weaknesses. You obviously fail to see that.

By the way, Obama, or a minion, announced that they will seek to reduce the corporate tax rate from 35% to 28% while closing loopholes. Excellent, cut the rates and make the deadbeats pay! For one, corporate taxes really are too high, and it calls the bluff of all those who said they couldn't repatriate their profits because of the rates. Obama is outflanking the evildoers from the right and left all at once! Yeah, baby!
You may need to cut back on coffee intake. You are aware this is an election year, right?