As background: Obama went to a UU church as a child and a UCC church in Chicago. UUs are so liberal that they stopped being Christian. You'd be hard-pressed to find a Christian denomination more liberal than UCC. But, as I'm reminded time and again, progressive does not necessarily equal feminist.
ETA a little more analysis: Churches are an example of how discrimination works differently for different groups. People of different ethnicities often can find churches in which their group predominates, and they often can attend as a family. Women have less opportunity to attend a church that is all or almost-all female, if they want to go with male members of their family, or if they want to socialize with men. Maybe this is one reason churches take us for granted.