Why an angled-deck LHD becomes a compromised carrier and assault ship

Would an LHD with an angled flight deck and catapults be a viable carrier for a small navy?

It can be built, but catapults, arresting gear, aviation support, and the well deck compete for the same limited volume and interfere with the helicopter operations that define an LHD.

An LHD's flight deck must launch and recover helicopters while the hull devotes major volume to troops, vehicles, boats, and a floodable dock. Catapults and an angled recovery path consume safe operating space and demand fuel, spares, maintenance, and specialist deck crews. Removing the dock produces something closer to an LPH or light carrier, but retaining every role leaves both the assault and carrier functions short of space. STOVL aircraft avoid some of the machinery and training burden, whereas a small CATOBAR fleet may need to depend on a larger ally for qualifications, supply, and sustained readiness.