Because it is not the bishops' role in life to figure out the provision of health care. It is their role to oppose making every American complicit in abortion and provision of contraception through ACA, and that is what they are doing.
If the Protestants, being a bunch of spineless cowards, did not rolled over and played good puppy to the government on moral acceptability of contraception, we would not have any of that, by the way.
Gee thanks Luther, you damn jerk.
The Bishops supported a law that provides for more abortion and euthanasia.
The Protestants voted against Obama as they do every democrat candidate for president.
Catholics voted for Obama, and as we learn here, they have been pushing for socializing medicine for a 100 years.
Personally I consider conservatives better voters and the liberal voters as spineless cowards and good puppies to government.