For starters, Singapore wasn't founded by a group of ethno-national colonists who drove out the indigenous population...

Firstly, the 'Islamic' character of Malaysia and Indonesia has never really factored into Singapore's geopolitical confrontation or collaboration within SEA. Secondly, the narrative that Israel is some kind of plucky outpost standing up to barbaric Islamic hordes at its gates is, at best, profoundly naive at this point. There isn't a meaningful correlation to be found here except through the lens of intellectual laziness and Islamophobia.