Why all the states think palestine is a terrorist people ? ?

It's hard to know why some people think the way they do.  The best we can do is
take a guess.  In this case, it might or might not have something to do with the
President of the PA saying that he will never allow a Jew to live in his country,
and that he will never make peace with Israel, and that he will never renounce
violence, and that he will never rest until "Palestine" is free from the river to the
sea, and naming streets and city squares after suicide bombers, and paying
government pensions to their families, and because their school system is
one in which their children are taught to hate "the enemy" and to grow up to
kill Jews and become martyrs, and because their people dance in the street
and enjoy sweets and laugh and sing when their own citizens murder Jews.
But that's only a guess, and, as I said earlier, it's hard to know why some people
think the way they do.