Division Between Israel and Judah

So, Solomon’s son takes over, Rehoboam. Jeroboam tell his brother that he should lower the taxes and relieve the people, but Rehoboam will have nothing to do with that and threatens to raise the taxes. When some tribesmen come home and see that this tax thing is going up, they rebel and stone Jeroboam reps. They make Jeroboam their king. Rehoboam dislikes this and raises up an army to fight. Meanwhile Jeroboam, sets up a new worshiping system (Idol worship made to look like God worshipping) because he does not want his people to go to Jerusalem to worship. This goes against everything that God has told them to do for worshiping the Lord.
Seems to me that these two men are just down right disobedient. I mean, not that we all aren’t, but wow. They knew exactly what they were doing was 110% wrong. I actually take that somewhat back. Rehoboam was more foolish then disobedient. Jeroboam was outright disobedient. You know Gods promise. You would be foolish to disregard it and do things out of fear like these men did.