Jotham's father's failure did not make Jotham bitter. It made Jotham better.
2 Chronicles 27:2
He [Jotham] did right in the sight of the LORD, according to all that his father Uzziah had done; however he did not enter the temple of the LORD. But the people continued acting corruptly.
Jotham was like his father, and he was not like his father. He was like his father because he had a heart for God. He was not like his father because Jotham finished his life well and his father failed.
Here is an important life lesson: parents are sinners. You either choose to love them with all their faults and failures, or you excuse your own life of failure by blaming your parents until the day you die. Here is the big BUT. BUT after you die, you do not stand before the throne of your mother or father, you stand before the throne of God. When it comes to your life and parents, be like Jotham. Jotham followed whatever good he could find in his father and then marked the big hole father fell into and avoided it.
To the best of my knowledge (and I just made a casual search), there are many proverbs about bad sons, foolish sons and immature sons in the book of Proverbs, but there is not one word, about a bad father. Were there no bad fathers? Of course there were bad fathers, but hope for change was in the sons not the fathers.
For me to live is Christ.