Ladies and gentlemen, I present Jona L., Dean of the Department of Keyboard Warrior Studies and Misguided Projection.
You are clearly dealing with someone who knows more of what you are rambling on about here, given he was alive at the time. Save face, stop now, while you can.
Well, dave, being alive during an event does not necessarily mean you know more about it than someone who wasn't, especially considering there are only few topics on which you can get more information that German-German relations and the fall of the GDR (at least talking for German standards).
"Rebuild that goddamn wall, but build it out of glass, so they can see how soon the west is wealthy again..."
.....tear everything down behind it and organize a constant Love Parade on the ruins, with only one tiny tunnel at Bhf. Friedrichstraße to visit it..... 
Well, I don't actually care, as I never supported the "Love Parade", neither in Duisburg nor anywhere else. It was a big mistake, and I didn't say that Mr. Sauerland, our town mayor, was a good politician. I didn't vote for him, that just asides.
There are just
slight differences between Duisburg and the GDR which makes it a
bit diffcult to compare.
a) Duisburg is a town under 500.000 inhabitants, while the GDR had over 5 million people living in it (a lot more even).
b) Duisburg has no command economy, nor is it run by a communist or socialist government.
c) We didn't ask for being integrated into FRoG, we were part of it right from the beginning, and had been pretty wealthy until the GDR came in.
d) We have had (and still have) solid industry, which you claim to have been brought down. Thyssen Krupp is the 7th largest producer for Steel and Steel products, only out of Duisburg. Duisburg also has "HKM" ("Hüttenwerke Krupp-Mannesmann") belonging to the Accelor Mittal steel-group which is also in the top-ten steel producers of the world with a couple of steelworks. Duisburg also still has the 2nd largest inland harbor of the world at which over 40 million metric tons of freight are handled each year. And thus have an industry that with no doubt could beat the industry of any (former) GDR town, and can measure up to a big portion of the whole GDR's GDP.