Most of these surveys are actually quite silly and superficial.

A better survey would require respondents to detail the principles and the chained logic of their reported opinions, vs. just skimming them for emotions.

How many of these Catholic respondents could work their opinions down to a set of underpinning and stable (across circumstances) moral theological principles?

Can they provide solid descriptions of their "opinions" in terms of 
-the law of love?
- justice (can they give an operational definition of justice, without waving their arms?)
- intention?
- the duties for which our freedoms are given?
- the object of a moral act?
- the circumstances of the action?
- protection of the common good?
- last resort?