I feel certain they don't. They're only in one port, aren't they? Miami? And now Congress is going to *force* an underqualified company of some kind to buy something they didn't need or want? That stinks.
Now, watch and see if the former P&O North American operations are "parted out" yet again, in even smaller parcels. Just for this one union company. Bah.
That's sure more likely than Eller "taking it all." I still don't have hard data to back up my opinion, but news articles are pointing to a parting out, with Maher getting NJ//NY, Eller (maybe) getting Miami, but Eller being credited with starting the objection ball rolling (with their lawsuits).
Just for this one union company. Bah.
AFAIK, all US ports are union, and will be no matter who owns the rights to warehouse and stevedore.