More recently in 2015, YFG campaigned in favour of legalising same-sex marriage by supporting the Thirty-fourth Amendment of the Constitution of Ireland. In 2017, YFG members at the organisation's Summer School voted to take a neutral stance on any upcoming referendum on Ireland's Eighth Amendment governing the country's abortion laws. In 2018, YFG members voted in favour of Ireland becoming a member of the European nuclear physics research centre; CERN.