Why is it that bills introduced by the opposition rarely become law?

Bills introduced by the opposition rarely become law primarily due to the majority party's control over the legislative agenda. The majority party typically has the power to prioritize their own proposals and influence committee assignments, which limits the chances of opposition bills being debated and voted on. Additionally, partisan politics often leads to resistance against measures proposed by the opposing side, even if they have merit. This dynamic creates significant barriers for opposition bills to gain traction and ultimately become law.