Moldovans do have a right to a port city so Moldavia's exports can increase. The economy of countries rely heavily on the ability to export and import. I think that any country should be allowed to have a port city so that they can fund their government and make their conditions improve.
Moldavia is a small country in between the Ukraine and Romania. The former Soviet republic sits just off the Black Sea and has no ports. A port with water access would help Moldavia's imports and exports tremendously as shipbuilding, transportation and other economic activities would increase. The Ukraine controls the ports near Moldavia, so any negotiations would have to be done with respect to Kiev.
Moldovians need a port city so that their exports can increase, but they do not have a right to one. Moldovians do not have a right more than anyone else to have a port city. It would be beneficial for Moldovians if they had a port city however. If they could some how gain access to one, that would be great.
No, Moldovans do not have a right to a port city for their exports, any more than any other nations have the right to take land from other people for personal gain. If Moldovans want access to a port, they need to buy that access from someone who has it. Moldovans cannot simply demand to use someone else's property. They need to work it out peacefully.
No, Moldovans do not have a right to a port city so that their exports can increase, because they do not have a right to the land of other people. A port would be helpful for them, but that does not mean that they just have a right to take one from someone else. A trade agreement can be set up that will allow them access.