I've created a commandline tool with the same name as this thread, GlobalFixForAllFC3DependentMods, at:
https://www.digitalcombatsimulator.com/en/files/3340679/
Special thanks to SkateZilla and countless others involved in debugging/testing to find a solution after many months.
The utility does exactly as described in this thread for backwards compatibility with FC3 dependent mods and can also unset the entry.lua's for IC .
It's very extensible via an iniFile configuration in case of changes to the FC3 modules or additional plane mods built upon FC2024