Ok, so it's just a game...

I'm still a Sim racing newbie / novice, but I am trying to treat other "drivers" with the respect I would like to receive. I am making mistakes where I will miss my braking or run wide (sometimes hitting others, but not intentionally).

What is difficult to ignore is the blatant ramming if you get past them (even if its clean), I was hoping that the quality of sportsmanship would improve as I moved up the driver rankings, but I have yet to see much evidence of this. Even watching some of the YouTubers who are A and A+ level drivers, still have many incidents of "SimRage" or Overtake Revenge. 

So what is the solution? 

The easiest is to only compete with people you respect, but that requires someone to arrange / organize and have enough people to be available at the time you want to race.

The daily races are very convenient, within 20-30 mins you can join a race with others online, but obviously you have no control over how they behave. GT Sport has a penalty and driver rating system as well as a matching scheme to select players. The issue is that the GT Sport system is not very good at being able to determine the correct blame, it is not a simple task to decide who is actually to blame and you can argue that it's the same for everyone. It does not make it easier to accept a penalty when you have been rammed off track and get a 3 second penalty for hitting the barriers.

So given the penalties don't work and many players don't care about their DR or SR, if they are quick they can just set up a new Playstation ID and get back to C level quite quickly. Some of the YouTubers say that can 

go from E to A in just a few hours (or a day / two).