When you list boats like Halberg-Rassy, Nautor, Sweden Yachts, Finngulf, X-Yachts, Dehler, with the possible exception of Halberg-Rassy these are all reasonably modern, high performance and well constructed boats. Of the three US companies that you mention, only Morris makes a reasonable performance oriented boat and its a 54 footer. Most of the others that are mentioned above; Hinckley, Lyman-Morse, Island Packet, Pacific Seacraft, Cape George Cutters
, Gozzard, or Cabo Rico would not provide the sailing ability of the European boats that you mention and some would not be in the same league with regards to the quality of their construction.
In a general sense, the quality European yards seem to be ahead of us in terms of the innovativeness of their designs. Up to date fractional sloop rigs and modern hull forms are much more popular over there than in the States.
I think that the closest U.S. made boats to the boats that you are considering would be the cruising series of J-boats. Sabre might also qualify except that their designs are still very dated. Tartan/C&C have been slowly updating their designs to be a bit more modern but as mentioned the net is full of alligations and records of lawsuits against the company related to lack of payment to suppliers and warranty issues.
At this point there is a real shortage of high quality, modern designed, dual purpose, reasonably high performance boats coming out of US yards.