In April 2023, Quaide left the Green Party, citing frustration with the government's handling of the Owenacurra mental health facility closure. Quaide,who had campaigned against the closure, criticised his party colleagues for failing to challenge the decision, which he believed caused serious harm to vulnerable individuals. The Owenacurra Centre, located in Midleton, had been slated for closure in 2021 but remained open amid strong local opposition. Quaide argued that the government had rubber-stamped the closure despite mounting evidence that residents were being moved from single rooms to shared dorms, severing their connection to the community.[7][8]
In his resignation statement, Quaide linked the government’s response to the closure with broader concerns about its treatment of vulnerable groups, including those facing homelessness and Mother and Baby home survivors. He also expressed concerns that government policies, such as those related to housing, caused social division and alienated people from the Green Party's agenda. Quaide praised Green Party TD Neasa Hourigan for her efforts in the Owenacurra Centre campaign, noting her actions were more impactful than those of several other local TDs.[7][8]
In 2012, Quaide married fellow UCC alumnus Róisín Cuddihy, whom he met in 2006 while working in Dublin. The couple returned to Cork after marrying and settled in Midleton in 2014. They have a daughter and a son.[4]