Well that's dumb. All around dumb.
While you can point the finger at the other racer for pushing to the right, your choice to push them as far to the left as possible is also very bad, especially considering once they've failed to push you far enough right, you seem intent to push them off track to the left.
There's a point in this exchange (when you cross the middle of the track) where it goes from trying to defend yourself to becoming retaliation. You're not solving the problem of people forcing other drivers off the track, you're adding to it.
Edit - let's expand on this as a few people have given the ol' poo emoji response, so let's look at this from both angles.
Car 1 (the lead car) could have intended to edge Car 2 (chase car) to the right a little. It's known that the radar and hit-boxes for the cars aren't exact, so contact could have been completely unintentional as Car 1 could have thought Car 2 was further back than they were.
At the point of contact, Car 1 may assume that Car 2 is now trying to pit-maneuver them, Car 2 may assume Car 1 is trying to ram Car 2 off of the track. The result is both drivers intentionally making contact to retaliate.
The end result is Car 1 spinning off and Car 2 thinking they've "won" the battle. Car 1 is going to be frustrated and quite likely think that the next time someone makes contact with them (regardless of whether it was intentional or accidental), they'll make sure they push them off track. Car 2 is going to think that whenever someone moves over to block them or make contact, again intentional or not, they'll teach them the same lesson they did Car 1 (this is shown as OP thought their "victory" was worth uploading and sharing).
Neither racer has learned to drive cleanly. They're both going to be wary of other drivers and react aggressively to contact from others. That's not solving the problem of dirty drivers. It's adding to it.