it's important to remember that a lot of the century series fighters were designed for one thing and ended up doing another. we could easily find ourselves in the same situation if we're not much more deliberate and cautious. obviously, the conditions of needing to rapidly field aircraft, a lack of computing power and other problems of the era contributed, but it's still pretty damning.
F-100: built as a replacement for the non-interceptor versions of the F-86, ended up doing CAS/BAI in RVN because it was too slow to fly in NVN, flew in the guard basically as a fast jet placeholder
F-101: built as a both a tactical nuke delivery system and and interceptor, did both jobs but was most useful doing Tac Recce over NVN, flew in the guard as an interceptor for ADC but was basically a placeholder
F-102: built as an interceptor, flew as an interceptor, did limited CAS/BAI
F-104: build as an interceptor, impressive performance but lackluster in many other ways, became a lackluster, notionally multi-role aircraft like the F-100
F-105: built as a tactical nuke delivery, did the job, pressed into service dropping M-117s on innocent people, lot good people ended up dead or in hoa lo prision.
F-106: built as an interceptor, flew as one, not utilized despite of it's obvious potential as an air superiority fighter, probably due to ADC owning them, lots of proprietary equipment like SAGE, and TAC being fulling in on the F-4
F-4: build to pick up the slack, essentially the genesis of multirole
not telling anyone anything they don't already know, just reminding