Bradford East MP Imran Hussain was speaking as Labour made "disastrous" losses across the country.
But three other MPs - John McDonnell, Apsana Begum and Zarah Sultana - remain suspended.
Labour's Imran Hussain says his view on Gaza "differs substantially" from that of leader Sir Keir Starmer.
The MP's decision to quit his post over the party's Gaza ceasefire ups the pressure on Keir Starmer.
Imran Hussain questions the government's plans to give the Home Office the power to revoke people's citizenship.
An MP describes how family members of his constituents were taken off a rescue flight and “thrown out of Kabul airport”
