The members of the Progressive Innovation Party have always been a bit eccentric.
In the game, just looking at the associated quests reveals all sorts of bizarre conspiracy theories, anti-vaxxer rhetoric, and other absurdities.

In contrast, the Equality, Liberty, Constitution Party, which has a name that might raise some eyebrows, is surprisingly genuine. They sincerely strive to harmonize equality, liberty, and constitutional principles, and their political philosophy is well-researched and methodical.

Compared to that, the Progressive Innovation Party...
Despite carrying the lofty ideals of "progress" and "innovation" in their name, they embody the exact opposite of those values.