Can't see a solution to the problem, ever since the Cosworth dominated era F1 has always had First Division v the rest. sometimes it was because of better chassis or engines but mostly because of money. Liberty makes big statements about keeping the history of F1 alive, well F1 has always had haves and have-nots, level playing field has never really applied.
The tobacco Barons were King makers for a long time, works status was not as essential then but over time motor industry backing has become a must again.
To me it's almost returned to it's roots, car makers dominated the first ever race and season in 1950.
Now it's gone full circle so I guess it's gonna take another bout of boredom from the OEMs or a new breed of garagistas to start the wheel turning again.
My big fear is the rule makers will overreact and turn the wheel back to the days when they required F2 cars to make up the grid, or worse still....... make it a one make/engine series.