I actually work with Catholics who support abortion while at the same time discussing what they gave up for lent and when they will be attending their next mass. Needless to say this presents confusion to non-believers who hear these comments.
IMO if a Catholic, or anybody else, supports the murder of unborn babies, who we are called to protect and nuture, then what in the world makes people thing those same people give a hoot about your life and the welfare of it...let alone the politicians they support who agree with them. There is no shame in the hearts of those people.
Lots of people are “Catholic” or “Lutheran” or whatever only because of that is what their people are.