This right here is why I can't agree with your opinions. FH5 is the antithesis of "realism", and no amount of tuning or setting changes will allow that game to come into the same universe as GT7. Same goes for the majority of "driving" games listed earlier.
Don't get me wrong, I know full well that GT isn't sim by many peoples metrics, but as someone whos done his fair share of track driving in many different vehicles, I can safely say that GT gets very close to the balance and realism of driving cars at speed. It's not perfect, but it's very good, and can be a good basis to inform real world driving skill.
If anything, it's harder than tracking cars in the real world (several drivers have attested to this) as well as being more difficult (in car control and traction limits) than ACC and iRacing.
FH5 is an arcadey dumpster fire. It's physics couldn't be any worse, and there is nothing anyone can do to bring it into the same solar system as a sim.