This is true.

Palestinians had many chances for 2 state solutions but rejected them all.
For example, in 2005, Israel unilaterally removed all their soldiers from Gaza to show that they would be very willing for a two-state solution and peace. They forcefully removed thousands of Jews from the North of Gaza, including the removal of the Jewish cemetery and moving it to Israel. They left behind all Jewish infrastructure, kibbutzes, farms and greenhouses. These were businesses producing products for international export. The first thing that Gazans did was burn all of this to the ground instead of taking over to continue the business and live there. Then in 2006, they elected Hamas. They could have created a second Singapore there but they chose a life of war, hate and destruction.

The most generous offer for a two-state solution was offered by Clinton to Arafat but he rejected it.

Bill Clinton recently explained what really happened then.

"Bill Clinton addresses Israel–Hamas war at Kamala Harris rally in Michigan"