Quite the opposite. The Catholics that I know who voted Obama attend mass every Sunday. The ones I know who do not attend church regularly mostly voted for Romney.
That was my experience too. When I tried to talk to them about what Obama is doing to our church. They got mad, said it wasn't true and it was just a big lie concocted by the bishops and the K of C to subjugate women and cover up for child sex abuse.
These were active participants in the church--in the choir, teaching C.C.D., etc.
It was then I realized how bad things were.