Mosiah 10

As we liken the scriptures to our day, king Zeniff says of the Lamanites. that  -

"They were a wild, and ferocious, and a blood-thirsty people, believing in the tradition of their fathers, which is this—Believing that they were driven out of the land of Jerusalem because of the iniquities of their fathers, and that they were wronged in the wilderness by their brethren, and they were also wronged while crossing the sea;
13 And again, that they were wronged while in the land of their first inheritance, after they had crossed the sea, and all this because that Nephi was more faithful in keeping the commandments of the Lord—therefore he was favored of the Lord, for the Lord heard his prayers and answered them, and he took the lead of their journey in the wilderness.
14 And his brethren were wroth with him because they understood not the dealings of the Lord; they were also wroth with him upon the waters because they hardened their hearts against the Lord.
15 And again, they were wroth with him when they had arrived in the promised land, because they said that he had taken the ruling of the people out of their hands; and they sought to kill him.
16 And again, they were wroth with him because he departed into the wilderness as the Lord had commanded him, and took the records which were engraven on the plates of brass, for they said that he robbed them.
17 And thus they have taught their children that they should hate them, and that they should murder them, and that they should rob and plunder them, and do all they could to destroy them; therefore they have an eternal hatred towards the children of Nephi."  (Book of Mormon | Mosiah 10:12 - 17)

I note one central theme why the Lamanites hated the Nephites...they were taught that they were "wronged".  They were victims.  They were lazy and idolatrous just because they were wronged and everybody else is the cause of it.  Sounds much like our problems today, where those that are in poverty or told that they have be wronged and suppressed.  Some things never change.