I generally think that parties are no longer the best way to do politics.
I find your ideas intriguing and would like to subscribe to your newsletter. What alternatives can you envision?
I think there is a certain problem in politics similar to that of a biologist tasked with organizing organisms. There are "lumpers" that tend to want to combine everything into certain groups, and "splitters" that tend to observe the fine gradations and subdivide accordingly.
The lumpers have held sway in U.S. politics for a long time. There are technically many political parties in the U.S., but practically you are Republican, Democrat, maybe Independent, and everyone else gets dismissed as wack-jobs with no chance of winning. These "wack-jobs" might actually have excellent ideas and have very reasonable politics, but they don't align themselves under R or D and so fall through the cracks.
Even Bernie Sanders - he's a democratic socialist, where the Democratic Party (tm) is really more centrist. He (and the democratic socialists) know that they have better a better chance of being heard if they align with the Democratic Party and define their left position.
I suppose the same is true with the Republicans - look at the range of political views in that rabble of candidates, yet all are running under the Republican banner. Practically they are different parties, but for pragmatic reasons simply all label themselves Republican. They love calling each other RINOs (Republicans In Name Only), which is true, because they all define being Republican in different ways.