You mean like building them homes, letting them get an education, integrated into your community or perpetuating their lives in slums the way to give them a normal lives?
It's easy to just ignore the problem instead of actually coming up with a plan the help them regardless of what you think is the righteous thing.
I'm all for them to live a normal lives but maybe the Arbs nations are also to blame? Shouldn't they actually do something instead of putting all the blame on Israel.
This region can barely sustain it's current population letting a few million souls isn't practical in any regard.
You can't put 100% of the blame and responsibility on one side, even if it's the strong one.
The Arab nations attacked and kept attacking Israel, if they wouldn't attack in 47 the partition plan would hold if they wouldn't work towards war in 67 there would be no need to conquer Gaza, west bank, Golan heights etc. and there would be no refuges. Keep in mind the 20% of the population of Israel are Arabs.
When Egypt was in control of Gaza were the Gazans citizens? No
When Jorden ruled east Jerusalem and the west bank were they citizens? No
Did they mistreat them? Yes
Did they try and hold the peace and avoid conflict? No
Was there an International cry for Palestinians self determination? No
Did they encourage violence and throwing Jews to the sea? Yes
I'm not saying Israel is an angel who did nothing wrong, horrible things did happen, and could have done things better but this should not all be on Israel shoulders.
The bottom line is that the world doesn't really want to get involved, they don't want to solve the conflict, the Arabs don't want to look weak and ashamed and the Israeli side doesn't want to make hard concessions.