To be fair, outside of special effects not a lot of that movie wasn’t trash and attempting to harken back to its better predecessors.
The only currently unused Marvel villain with the gravitas and gift for gab I think Spacey could have done well with is Kingpin but we are getting another very good actor with better physical dimensions for the role in Vincent D’Onofrio.
I think of the big bad guys it would have to be the ones that are barely humanoid ones where he may mostly just be doing the voice such as M.O.D.O.K or Dread Dormammu or Nightmare.
There was no way they were doing a good story, that Fox could turn into another shitty Wolverine solo movie, to keep the X-Men rights.
They wanted him dead, gone, and forgotten.
Can’t wait for him to get revived in a decade, for an epic Hulk battle. We still got X-23