Nobody is calling Jesus King of Kings except by His title given in scripture. If you have scripture which titles Mary as Queen of Heaven, please show it. Otherwise, one is left to conclude that the only use of that title is to be found in Jeremiah as the title of a pagan goddess which is a highly unflattering appellation to be given to Mary.
Good point. In fact we have just this situation when a group called Paul and Barnabas by their gods' names.
Acts 14:12-15 And they called Barnabas, Jupiter; and Paul, Mercurius, because he was the chief speaker.
Then the priest of Jupiter, which was before their city, brought oxen and garlands unto the gates, and would have done sacrifice with the people.
[Which] when the apostles, Barnabas and Paul, heard [of], they rent their clothes, and ran in among the people, crying out,
And saying, Sirs, why do ye these things? We also are men of like passions with you, and preach unto you that ye should turn from these vanities unto the living God, which made heaven, and earth, and the sea, and all things that are therein:
Men and women of like passions with you. Not exalted as some are wont to do.
So, bottom line, no Mary is not the 'queen of heaven' any more than Barnabas is Jupiter or Peter Dagon or James and John sons of Thor.