Do I think his wife and her family's background will have an influence on his decision making re the conflict in Gaza, absolutely I do......my wife's opinions and beliefs influence decision making regularly.
I agree that Hamas' actions gave Netanyahu an "added" excuse but let's be honest the conduct of Israel towards Palestine previous to October 7th was already at a level that Governments of other countries should have been asking questions, he used that excuse to curry favour with the hard-liners and to remain in office (and possibly out of jail). Starmer has allowed things to get this far and still provided arms (for profit) and now thinks Israel has gone too far, give us peace.
His missus knew exactly who she was marrying and what his intentions and ambitions were, she signed up for it......I'll leave it there.