"Israel adopt a less dismissive stance to Hamas' competitors." - Like who? The only remotely realistic thing I can think of is Israel unilaterally trying to recognize a Muslim Palestinian non-violence leader like this Abdullah Abu Rahma, the director of the coalition at Bil’in https://www.satyagrahafoundation.org/gandhi-in-olive-country-palestinians-revel-in-the-nonviolent-struggle/ - Arafat promised in 2004 he could keep Hamas out of Gaza and pretty much just won't commit to anything concrete, so Arafat isn't a possible Hamas competitor. https://web.archive.org/web/20230223012526/https://www.haaretz.com/2004-06-18/ty-article/a-jewish-state-definitely/0000017f-eb15-d4cd-af7f-eb7df78a0000 and https://www.theguardian.com/world/2002/may/23/israel3