Wow! Racism in Michigan?
Perhaps in remote areas but Michigan people are very foreign friendly and midwestern culture is very humble and nice compared to many southern places.
Many places discussed above I have been to and had really fun.
Lets see: the partial list is here for anyone who thinks Michigan is boring.
Visited Frankenmuth many times and stayed there one night. Shops below resturants have european items.
Shopped at fairlane mall, summerset mall and great lake malls.
Stayed at JJ resort (west michigan) for one week. Did formal horse riding lessons there first time.
Drove along thumb area (opposite of pinky area to see old houses)
Video taped holland city girls dancing on music with wooden shoes and visited windmill. Holland city is on I-94 west of detroit.
Ate at the resturant on renessance center and watched river, boats and windsor.
Detroit Zoo is boring. Meuseum of Ford is just Ok.
Any good looking resturant in remote area or city I found I have eaten there.
Forgot the name of seafood resturant in south of detroit I think Melvindale city area (East of airport) right on the river. Best shrimp pasta I ever had.
Loved to eat Fishbones seafood resturant in Greektown, Detroit. Must try all the spices available on the table. Ask them make food extra spicy/cajun. (Not the one in farmington hills on lodge 10, Thats not good place to eat)
Sand dunes in western part is good only in summer. You get a jeep ride and get to see the beach. Clean but very soft sand on the beach and people have died there buried in sand.
Grand hotel in Mackinaw is good place to stay again in summer. Stayed there for 5 days or so. its a french type hotel with Jamaicans servers. Hotel is closed in winter.
Mackinaw island is a lot of fun but only couple of days are needed. One can ride a bicycle, even a tandem bicycle for two, or a horse/ horse cart. No motorized vehicles allowed there. One can see Fudge being made and buy fresh fudge.
In Dearborn one must try Hamido Lebanese resturant chicken rottessory. Out of world taste better than Al-amir or Cedar Land. Hamido is close to Shatila on Warren.
Shatila pastries and arabian sweets are yummy. Go after dinner there and you might find a friend there roaming around.
Upper Pennisula is too far about 7- 8 hours or so. Staying there in summer in a cottage is again great. Cannot describe the fun. You get to watch the movie how mackinaw bridge was built besides driving on the bridge itself to get to UP. UP also has waterfalls. ( I almost fell off one while climbing the rocky shaded area)
Travers city is beautiful again in summer or fall. Nice boats on the beaches and jetskis.
Troy is just a residential area. Nothing to do there.
12 Oak mall is another great place. They have a place close to for everyone to enjoy at night. Bowling/video games/movies/ laser tag/ resturants. You just walk from one place to other.
Ann arbor downtown and royal oak downtowns are for youngsters. Royal oak is trendy...:-)
Detroit downtown has become somewhat safer since gambling is started and extra security and lighting there.
West bloomfield, bloomfield hills and farmington hills suburb areas have nicer houses.
Try to see Arab-American meuseum in Dearborn also. Haven't seen myself though.
Coming to question:
Not much to do in winter except eat, ski, shop or drive around.:(
One must go there in summer. April is not a good time.
And two days??? If traffic is heavy then half day on the road anyway.
Someone did not want to spend time and money on the visitor I guess, inviting in April to Michigan!!! J/K :)
Can't put it in a better way myself.......Perfect description
it’ll be a very biased itinerary though 
