Have condoms made a difference among atheists?
They certainly have not helped the buttsex community.
Have to agree with presidio9: Though they obviously aren't the same as the atheist set, gay men are not known for their respect for Catholic doctrine, and condom promotion didn't even really slow the AIDS epidemic down in their community. It took AZT and the cocktail to stop the deaths. IIRC transmission rate has gone down some, but that probably just means that the men involved in the most risky behaviors died during the heavy part of the epidemic.