You can hate what he’s doing and what he stands for without hating him as a person. Give it a try, you’ll feel better!
Or,
Man will judge man's actions, The Lord will judge man's soul.
yitbos
Your dedication, loyalty and trust in God is the part one should always review. Hate is a powerful let-down in the end and it only drains energy from you, no one else.
I have been at war with the same type of battle for 20 years regarding my ex-wife, the battle (the battle within myself and my hatred) rages to this day, so dont feel alone, just feel normal.
There is only a single solution, let it go and leave the heavy lifting with the guy who does it best:
Vengeance is mine, I will repay, says the Lord.
That is a very powerful statement and you'd better believe it is true. After I learned to recognize it, I began to notice that the Lord dishes it out pretty well.
Let him work and you go serve
and stop being so hard on yourself. He will see you through it.