Isn't being pro-life and socially conservative more of a problem in Oakland and Kalamazoo counties? Those are areas Republicans need to win to beat Detriot's hefty margins.
It's a problem in Kalamazoo with Western Michigan University's influence. Oakland's not as simple as it's stereotype. (Fiscal Right, Social left). That's true in Royal Oak. The biggest change in Oakland over the last 20 years is the number of blacks moving in from Detroit. Southfield went for Dukakis by 5000 votes. It went for Kerry by about 30,000 votes. It's now 60%+ black. Pontiac has also always been a democrat and minority stronghold. Oak Park is now black majority. SE Oakland has always been very "Yuppie liberal" as well (Ferndale, Pleasant Ridge, Huntington Woods). The exurbs of Oakland are fast growing and solidly conservative and Republican. Milford, South Lyon, Highland, Clarkston, Lake Orion, etc. Those are where the gains have to be made there.
Macomb County is populist and swings. St Clair County, the UP, Monroe County, Calhoun County, Suburban Saginaw, Shiawassee County, and the Northeastern Lower Penninsula are all swing areas as well, but are more socially conservative and economic populists.
Also, a pro-choice republican is a HEAVY liability. In 1998, a pro-choice republican lost by 20% to Debbie Stabenow for Congress - while Geoff Fieger was getting creamed at the top of the ticket. She only had 53% in Livingston County - Bush had 63% in 2004. She lost every other portion of the district, swing and democrat leaning areas.