In the book of Genesis Joseph son of Israel exploited the Egyptians with a tax on their food in which he stored the food that he taxed of them

Joseph colonized Egypt & his close relatives moved to Egypt

When there was a famine instead of giving them back their food which he took from them that he stored he said he would only give it back to them if they became his slaves

By the time the book of Exodus occurred it should be obvious that the Israelites provoked the Egyptians into enslaving them