House Bill 5958, also known as the Religious Freedom Restoration Act, is a pending piece of legislation in Michigan that, opponents assert, may allow for the refusal of service, the denial of employment and of housing, and other actions that act against a citizen's rights if a person claims that working with or for that citizen would violate their religious freedom; however this much is only a speculation of the bills potential impacts.
[1] Michigan law currently prohibits discrimination due to religious beliefs against individuals in respect to some categories such as age and race.
The Elliott-Larsen Civil Rights Act, written and passed in 1976, was a landmark law in this regard in Michigan political history.
[1][2] However, no statewide protections for LGBT people in analogous circumstances exist, so discrimination against those individuals have frequently happened with no legal repercussions.
Groups stating their support include the Michigan Catholic Conference, the organizations arguing that the ability to discriminate can come from deeply held moral viewpoints that should be respected.