You do realize that often misquoted verse only applies to Ishmael and says nothing about his descendants........ .Still true of Ishmael' s ancestors. Genesis 16:
11 And the angel of the Lord said unto her, Behold, thou art with child and shalt bear a son, and shalt call his name Ishmael; because the Lord hath heard thy affliction.
12 And he will be a wild man; his hand will be against every man, and every man's hand against him; and he shall dwell in the presence of all his brethren.
No, it does not end with Ishmael. It is a generational prophesy.
Genesis 21:13, 17-18 God also bestows His blessing on Ishmael and his descendants, saying, "For I will make him a great nation."
Not only would Ishmael be an ass, but a nation of asses.