You’re optimistic about it being doable. Maybe if it was put to a vote in each of the states or maybe if it wasn’t currently relevant to one party’s head. But not put to a vote by the state legislatures. There only needs to be 13 state legislatures that say no to keep it from happening. The last time we passed an amendment was over 30 years ago and was just not allowing congress to give themselves a pay raise in the same term. Not a super contentious thing like presidential immunity when it the previous republican president is facing several criminal trials.