The negotiations were argued in bad faith. Israel would put forth ridiculous demands and then lay the blame on Palestine for rejecting them. Why do you think Palestinians are being pushed out of Gaza and have been continually and constantly pushed out for decades? There was never a sincere effort for a two-state solution.
Nobody wants to take on many refugees all at once, it’s very difficult to manage. Why do you think Britain “volunteered” Palestinian land to relocate Jews out of Europe? It wasn’t out of the goodness of their heart.