Was Arab opposition to the arrival of Zionists based on inherent anti-Semitism or a real sense of danger to their community?

"Before the 20th century, most Jews in Palestine belonged to old Yishuv, or community, that had settled more for religious than for political reasons. There was little if any conflict between them and the Arab population. Tensions began after the first Zionist settlers arrived in the 1880's, when they purchased land from absentee Arab owners, leading to dispossession of the peasants who had cultivated it."  Don Peretz  "The Arab-Israeli Dispute"

"During the Middle Ages, North Africa and the Arab Middle East became places of refuge and a haven for the persecuted Jews of Spain and elsewhere. In the Holy Land, they lived together in relative harmony, a harmony only disrupted when the Zionists began to claim that Palestine was the 'rightful' possession of the 'Jewish people' to the exclusion of its Moslem and Christian inhabitants."  Sami Hadawi  "Bitter Harvest"

Jews attitude towards Arabs when reaching Palestine

"Serfs they (the Jews) were in the lands of the Diaspora, and suddenly they find themselves in freedom in Palestine; and this change has awakened in them an inclination to despotism. They treat the Arabs with hostility and cruelty, deprive them of their rights, offend them without cause, and even boast of these deeds; and nobody among us opposes this despicable and dangerous inclination."  Zionist writer Ahad Ha'am, quoted in Sami Hadawi's "Bitter Harvest"