I agree with a lot of this although I would get ride of "to entrench". I think assuming intentionality is both a big assumption and not really necessary to describe the issue.
This happens simply because the dynamics of a winner take all election. George Washington was against parties but it was inevitable they would form and did so quickly (not necessarily because of an evil condition but simply because it is good game theory)
The fact that the major parties are not fighting against rank choice voting leads me to believe that they don't have a preference for a two-party system necessarily. It just isn't a main motivator.
This happens simply because the dynamics of a winner take all election. George Washington was against parties but it was inevitable they would form and did so quickly (not necessarily because of an evil condition but simply because it is good game theory)
The fact that the major parties are not fighting against rank choice voting leads me to believe that they don't have a preference for a two-party system necessarily. It just isn't a main motivator.