Can a monotheistic God have two thrones or chairs?

Since the days of Adam and down through the generations the prophets taught that there is just one God and that His son is an actual made being, as we can see in Micah 5:2, "whose origins/birth/beginning point are from the days [prior the creation] or [of eternity]."
Yet, ever since the Catholics took control of the Roman Empire, thus having a sword in their hand - thus making their words and doctrines into binding law, they been teaching that the monotheistic God of the Jews is a Trinity.
Well - tell me - can a monotheistic God have two thrones or chairs? For it is written in Psalm 110, "Yehowah said unto Adonai, 'Sit at My right hand until I make your enemies a footstool for your feet."
Likewise, if the Catholics are true, thus also the Baptists, Pentecostals, Methodists, Amish and.... Does this make the God of us Jews schitzophrentic, since it would seem He is talking to Himself and would not that second chair remain empty, if there is truely just one God?
Replies from the lost and the unlearned, as well as some decent replies:
FROM: that_guy_drew
i have a body, a mind, and a spirit. these three things compose my being. that's about the best way i can relate the Trinity to you. or i could say that i have an id, an ego, and a superego. having all three hardly makes me schizophrenic.
FROM: bdlsalam
One god one religion but so many misunderstood people.
FROM: witnessnbr1
It is simply a matter of understanding 'hierarchy'. There is one Supreme throne, which is YHWH's throne, but there are other thrones which are given, that do not have as much 'authority' as the One. This concept also blows the trinity out of the water.
Yahshua said to His disciples 'You will judge the 12 tribes of Israel', so there are indeed thrones which are 'below' Yahshua yet with authority. So now, there is a multiplicity. But this too, is scriptural.
It's pretty interesting once you understand the rulership and hierarchy of the Kingdom.
AS YOU CAN SEE #3 answered pretty well, I did delete some of his answer because of the lack of clarification.
In truth, the two thrones bluntly tells you that Yehoshua is NOT God, but only the ONE that invited Yehoshua to sit at HIS right hand.
As you can see, he does not even address the question or the fact that there are two thrones!!!! He will go to hell very easily - this is an example of pure blind and ignorant faith. No studying involved on his part, even after I point things out for the poor guy. OY!!! Just imagine, these are the people that are witnessing to others