A year ago Democratic insiders were wringing their hands saying Whitmer was doomed and we needed to find a man to run for Governor. My how times have changed.
This was nonsense then and is nonsense now. MI already elected a female governor twice, in 2002 and 2006. And Whitmer seems to run a strong campaign. Most voters don't care about gender. At least not those who vote or might vote Democratic. Same on male Democratic incumbents or candidates. If they're doomed, it's not because of gender.
Honestly, at this point it may in fact be the case that as long as you're a Democrat, it's better electorally to be Female than it is to be Male.