This is all probably irrelevant anyway. We may well be in the position similar of arguing whether magnetism is “really” necessary from the point of view of a 19th century physicist, when it obviously and simply follows from the existence of electric fields and relativity in the more advanced 20th century theory. It seems to me that a relativistic theory that somehow onlyhas electric fields and not magnetic ones would be much more complex.
It seems quite likely that weak force follows most simply from some underlying theory that we don’t have yet.
ETA: Based on the link in the top comment, the hypothetical ‘weakless universe’ is constructed by varying the ‘electroweak breaking scale’ parameter, not by eliminating the weak force on a fundamental level.
This is all probably irrelevant anyway. We may well be in the position similar of arguing whether magnetism is “really” necessary from the point of view of a 19th century physicist, when it obviously and simply follows from the existence of electric fields and relativity in the more advanced 20th century theory. It seems to me that a relativistic theory that somehow only has electric fields and not magnetic ones would be much more complex.
It seems quite likely that weak force follows most simply from some underlying theory that we don’t have yet.
In fact I think we already have this: https://en.m.wikipedia.org/wiki/Electroweak_interaction (Disclaimer: I don’t grok this at all, just going by the summary)
ETA: Based on the link in the top comment, the hypothetical ‘weakless universe’ is constructed by varying the ‘electroweak breaking scale’ parameter, not by eliminating the weak force on a fundamental level.