It doesn't matter whether there is "a Palestinian state" at this moment. Peace is impossible without Israel recognizing that Palestinians are not invaders, have equally deep roots in the soil with those who identify as Israelis, and that however the lines are eventually drawn, peace cannot come from anybody being forced to leave.
Please give up on the useless, pointless arrogant fixation on making Palestinians say "we admit we were wrong!". It's not as simple as that, they've never been driven mainly by hate, and it can never be just for Israel to exist but a Palestinian state NOT to exist.