Hamilton caused further controversy during a debate on the effects of Brexit in Wales. When Eluned Morgan claimed that the economic consequences of Brexit would be hardest for those who could least afford it, Hamilton remarked that "suicide's an option". He was instructed by the presiding officer to apologise for the remark. Hamilton initially refused, saying, "What is there to apologise for?" and "What was unparliamentary about the remark?" He did eventually apologise, saying, "I apologise for whatever remark I am supposed to have made."