Quinn has campaigned against the liberalisation of Irish abortion laws, the introduction of same-sex marriage and the legalisation of assisted suicide.
He is a member of the Dublin branch of Legatus, which promotes Catholic values in corporate business,[1] for those who meet stringent qualification criteria.
In January 2007 Quinn founded the Iona Institute, a Roman Catholic advocacy group promoting the practice of religion and families based on traditional marriage.
[13] Following this, Mr Quinn tweeted[14] "Proposed change to marriage "grotesque nonsense"... Great letter by Prof John A Murphy in @IrishTimes today #MarRef".
Mr Quinn was criticised for this Tweet by drag queen and gay rights activist Rory O'Neill (also known by his stage name, Panti Bliss), who wrote: "I can think of lots of things that are grotesque.
[20][21][22][23][24] In 2014 he made claims that the Irish Government would need to permit fracking in Ireland to address the growing demand for energy, while also sharing his opinion that the 2007 IPCC report was inaccurate.