Palestinians had a Two state solution

in 1948 when the UN created both Israel and Palestine 
but Palestine REJECTED that Two state solution
by declaring war on Israel, country of Holocaust survivors, with the help of Arab allies

Then in 1967 and 1973 it waged wars again, thus confirming its rejection of Two state
Let's not be naive, Palestine wants ONE state, that  being Palestine

And it thinks it will get ONE state with the help of
350 million Arabs
1.5  billion Muslims
and
leftists in the West who fall for Palestinians playing the victim card