Fine Gael has always had a liberal wing, as have all the other Irish political parties. In the early 80s TDs such as Alan Shatter (a member of Ireland's Jewish community) were notably liberal by Irish standards. Of course, during the 1930s Fine Gael came about through a merger of the Irish Blueshirts/Army Comrades Association (a 'security' group modelled on the Blackshirts -- many members fought in the Spanish Civil War on the Franco side). And ironically, though Fine Gael is considered to be more to the right of Fianna Fail, it has never governed unless in coalition with Labour, which while ostensibly left wing has usually been quite conservative socially.
Fianna Fail has also always had more liberal elements too, and Labour. Irish political parties sprang from the war of Independence and are quite hard to pin down in terms of left and right, liberal and conservative. All parties have had both 'liberal' and 'conservative' wings.
It is possible for individuals to have an opinion without it being forced upon them by any organisation. Either that organisation has done a good job of convincing them their argument is right, or they have got their ideas from elsewhere. Abortion was illegal in most countries including those with little or no RC church influence over voters or politicians up to relatively recently -- within the UK apart from NI, it became legal in 1967. In NI the dominant conservative opinion keeps abortion illegal. Not all conservative opinion there is RC-inspired, obviously. It tends to be a feature of legal abortion that it comes with constraints both wrt reasons for the procedure and stage of foetal development. This is not all because of RC church intervention, or influence.
In the non-democratic Soviet Union abortion veered from legal to illegal and back. In the People's Republic of China abortion has been the regime's method of population control. In a lot of countries where it has become legal, protest and long-fought campaigns both for and against have been features of public life. Japanese opposition to abortion in the late 20th century (abortion legal since the mid 19th century) did not come from the influence of the RC church.
The tradition of taking to the streets to argue your point is one protected in many democracies and while anti abortion protestors may not be shouting the message that many want to hear, protestors do have a right to shout it, and so do pro choice protestors, pro IRA protestors, anti unemployment protestors, opposition to the destruction of Wood Quay, pro and anti British-in-NI, etc. In the US, the nature of abortion protest and many technical points related to the conduct of protests have been fine tuned while still protecting the right to freedom of speech of those wishing to protest abortion.
The 'taking on of the Vatican' comment in the wake of the Cloyne Report (about disregard for child protection measures in the Diocese of Cloyne) arose from Kenny's focus on the Vatican's refusal to alert the civil authorities to the fact that they suspected certain priests of child abuse, preferring to treat it as an administrative matter for the church (if at all) rather than a matter appropriate for the criminal legal system. Irish politicians of all stripes presided over the social policies that allowed the borstals, reformatories, laundries, etc., to operate. Irish politicians also presided over an education system where corporal punishment of children was allowed until 1982.
The idea that children have rights is a relatively new one in Ireland (and in the UK too, where many institutional homes for children became the playground of predators. Celebrity culture has many side effects, and celebrity doesn't always come from being a media star. In Ireland for various reasons, the priest or the bishop was often the celebrity.) Physical punishment of children in both school and home, or one or the other, is still legal in many countries including Ireland and the UK (where school corporal punishment was banned in state schools in 1987 and private schools in 1999 in England and Wales, and in Scotland in 2000 and NI in 2003).
I rather think I do know the meaning of the term non sequitur, Curlew.
There are just under half a million RC priests worldwide.