If MPs allow their actions to be dictated by fear and not principle, then they should resign.Be that as it may
But there is more to
This than meets the eye
Many MPs fear fear for there safety and the safety of there family members the threat level against MPs had gone up
Significantly since this Gaza caper kicked off in particular against Labour MPs
The IRA killed plenty of Tory and Unionist politicians, it seems that it isn't only the people in Israel and Gaza who are living in fear.
This conflict is now damaging democracy in the UK, politicians are now in fear of muslim nutters or the Israel lobby, who, if they consider you a threat to Israel, will destroy your career by smears and lies in the media.