In the post, Patrick demonstrates that the SPLC cofounded and led Change the Terms (CTT) then goes on to demonstrate CTT targeted a specific political candidate's fundraising. The first is fine, the second is illegal.
Check out the section titled "July 2021: The CTT coalition attempts non-partisan interdiction of Trump PAC fundraising" for specific quotes and even a picture of a mobile billboard they funded.
That is neither "ideologies" nor "party definitions"