Yes and those 'camps' have become cities, like Jenin and Ramallah and Nablus. All fostered by the UN of course. And the other Arab countries use the 'plight' of the Pallies, which they actively perpetuate, to keep their own people from waking to the realization of the screwing they are getting from their native kleptocracies. In Mark Steyn's words the Palestinians are a 'comprehensively wrecked people'. All would have been better off to ride out the 1948 war at home.
There is an implication in what you wrote, even if unintended, that the Palestinian Arabs were peaceful while the Arab Nations attacked Israel in 1948.
Nothing could be further from the truth. The Palestinian Arabs were attacking Palestinian Jews immediately- as they had done for decades.
"First phase: November 29, 1947 - April 1, 1948
On the day following the adoption of the UN resolution seven Jews were killed by Arabs in Palestine in three separate incidents: at 8 o'clock in the morning, in what came to be seen as the opening shots of the 1948 War , three Arabs attacked a bus from Netanya to Jerusalem, killing five Jewish passengers. Half an hour later a second bus attack left one passenger dead. Later in the day a twenty-five-year old man was shot dead in Jaffa, where wild rumors spread about alleged attacks on Arabs by Jews . Arab prisoners also attempted to assault Jews in Acre prison, but were beaten back by guards. In Jerusalem the Arab Higher Committee called a three-day general strike from Tuesday, 2 December to be followed by mass demonstrations after Friday prayers. The Committee's statement included eight resolutions, the last of which called on the British Government "to hand over Palestine forthwith to its Arab people". On 2 December a mob looted and burned shops in the Jewish commercial district in Jerusalem, unopposed by British forces. From the beginning of the strike onwards Arab and Jewish clashes escalated and by 11 December the Jerusalem correspondent of The Times estimated that at least 130 people had died, "about 70 of them being Jews, 50 Arabs, and among the rest three British soldiers and one British policeman". "