I don't argue any of what you just said. Refer back to my Eisner-Pixar analogy.The Marvel-Universal deal was made in the mid-90s. It was a good deal for both sides at the time. Disney acquired Marvel knowing full well that they would have to honor such arrangements.
Disney paid a premium to obtain the distribution rights for the Marvel Cinematic Universe movies. They are not even trying to make a deal to Universal about the Marvel rights for Florida. Those facts alone should tell you that Disney finds the current arrangement acceptable despite your objections.