Why do you care what gets built there, what do you have against wealthy people? Thats some of the best beach front real estate in Israel. Also there isn’t much poverty in Israel so your comment is moot.
About relocating people of Gaza they are stateless under international law and have zero legal right to live there. The world has been relocating refugees (which is their legal designation under international law) for decades so it’s nothing new. Or we could continue to let Israel and Palestinians continue to kill each other for eternity