People who've been living in their homes for 70 years are not "refugees".
That Israel may make them refugees by engaging in ethnic cleansing is entirely the point.
Providing support for Palestinians who flee is reasonable. But trying to make them leave the region? That's just helping Israel's campaign of ethnic cleansing. It isn't just supporting ethnic cleansing, it's outright engaging in the practice, directly.
The better solution to everyone is to resolve whatever issue could cause them to flee in the first place. Which, in this case, is Israel's ethnonationalist war crimes.