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.
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.