Not all Catholics are against marriage equality
Normally, when someone declares oneself a person of faith - in my case a Catholic - the public, with justification, will make the presumption that you are a staunch upholder of the status quo in society and in the case of the forthcoming marriage equality referendum, a definite 'No' voter.
However, such a presumption is not justified anymore. Over the past 50 years there has been a significant change occurring, especially within the Irish Catholic Church.
This change is not seen among the hierarchy but is very evident among the non-cleric lay people who have decided to remain in their church to demand reform.