The limits of converting container ships into light carriers

Could seized or reinforced container ships be converted into carriers for aircraft such as the F-35B?

They could provide limited emergency aviation capacity, but would be much less capable than purpose-built carriers, especially for recovery operations.

The Falklands War demonstrated that a merchant hull can carry aircraft and provide a platform for takeoff in an emergency. That precedent gives the idea real utility, especially when a fleet needs aviation capacity quickly. It does not make the converted vessel equal to a carrier: superstructure placement, exhausts, deck strength, aviation support, and recovery geometry remain serious constraints. The concept offers scenario-dependent emergency capacity rather than a substitute for a purpose-built flight deck.