No, I really don’t. And if they were capable, their output wouldn’t matter to a degree that will make one GD bit of difference to Jones Act shipping. We’re not capable of producing massive tonnage like Bath, Philly, and Mare Island did during WW2. Between the sheer incompetence I noted (or as you pointed out, in both design AND fabrication), what are the delays and cost overruns on those Matson ships and MPSVs? Heck, the new CVNs? The SSNs?
How much of a subsidy will it take to make building in a US yard cost effective over finding loopholes or lobbying for exemptions, or hell, maybe an executive order or two to just kill it flat out (congress doesn’t care and they’re all kissing the ring anyway).