LJube is just having his fun.
I do believe Michigan will trend Republican pretty significantly with Trump on top of the ticket. However, Romney lost Michigan by 10 in 2012, and I have a hard time seeing Trump being able to make up the whole margin. My personal ceiling for Trump in MI is probably losing by 3 or 4, but it's probably in his best interest to force Hillary to compete there.
Romney was a very poor fit for working class voters. He is the antithesis of Trump, Trump being a real-estate developer and the ultimate job creator, and Romney being a vulture capitalist (Gordon Gekko) and job destroyer.
There will also be some traditionally Dem working class voters switching to Trump and their votes count twice for the purpose of reducing the margin.
If the popular vote margin became closer (within one point or so - as is generally expected of this election), Trump would be in a very good position to even win Michigan, while Ohio and Pennsylvania would be almost guaranteed.