Add that to the ‘none shall pass’ mentality of a few (even if they cock up) and it’s chaos.
Exactly.
Overtaking, especially with cars, is often an agreement between the two drivers. Both must think of "how to get the two cars through without making a mess".
This is completely missing from most simracing players (I mean in general, in all groups or open servers). Accidents almost always happen for really stupid reasons and often even after a review they are or can be judged as racing accidents, because it is enough that only one of the two drivers has not been cautious enough to make contact.
"Ops, racing contact", "eh but your noise was 30 cm behind mine", "my line was the racing line", etc etc.
Thinking instead about how you would drive in reality would help a lot.
Surely "racing sims" are badly designed and neglect the damage model. With serious damage to each hard contact and related forced withdrawal, people would learn to be more careful.
Obviously mistakes and misunderstandings are not and will never be a problem for me, all can wrong.