He claims to be deserving prophethood and that Allaah is unfair to him..
2-2-2012 | IslamWeb
Question:
if all humans all equal, then isn't it unfair that Allah choose some humans to be His messengers / prophets & not others. Isn't it unfair to me. After all, I am also His slave. so why don't I deserve such honor & privilege,
Answer:
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad 
is His slave and Messenger.
The person who said: “May Allaah have mercy upon a person who knows his real status”, has really spoken eloquently. But it seems that you are ignorant of your status and you do no know that you are a weak human being: your beginning was a dirty sperm, your ending will be a dirty corpse, and you carry something dirty in your body [excrement].
This is your origin, your situation and your destiny. If you do not remember this, then we remind you of it now, so that you will put yourself in your real position and not dare to describe Allaah of injustice.
What you said in your question can only come from one of two persons: either a crazy and insane person from whom the pen is lifted, and so he is not held accountable of what he says, and if this is the case, then this is the least serious of the two kinds of people. Or a person who neither believes in Allaah nor in the Last Day, so he needs to know Who Allaah is.
The fact that people are equal, then this is true; they are of the same origin as far as their creation and humanity is concerned. However, they differ in their characteristics: some of them are kind and some are wicked, some are rich while some others are poor, some are ugly whereas some are handsome. The One Who favored some over others is the One Who created them, and since it was He Who created them, He is well aware of them, and he knows who deserves this particular favor and who does not deserve it. Allaah Says (what means): {Does He who created not know, while He is the Subtle, the Acquainted?}[Quran 67:14]
Therefore, every preference of Allaah for some of His creation is based on knowledge and wisdom; for more benefit, please refer to Fatwa 87624.
You should know that by your statement you are repeating the statement of the infidels and the polytheists who were destroyed as related to us in the Quran. Allaah Says (what means): {And they said, “Why was this Quran not sent down upon a great man from [one of] the two cities?” Do they distribute the mercy of your Lord? It is We who have apportioned among them their livelihood in the life of this world and have raised some of them above others in degrees [of rank] that they may make use of one another for service. But the mercy of your Lord is better than whatever they accumulate.}[Quran 31-32]
Ibn Katheer 
said in his Tafseer (of the above verse): (i.e.: the matter is not in their hands; rather, the matter is in the Hands of Allaah, Who knows best where to put His Message. Allaah does not send down His message except on the people who have the purest heart and soul, and on the most honorable homes, and those who have the purest origin.) Besides, Shaykh Abu Bakr Al-Jazaa'iri said in his interpretation of the Quran entitled Aysar At-Tafaaseer: “Allaah denies this control and the corrupt proposal from them.... Since it is We Who divided amongst them their living sustenance, and We make so and so rich and so and so poor, and We make so and so a king and we prevent so and so (from having kingdom), then what about the prophecy which is most important than food and drink, so We are more deserving of it from them, so We reveal it to whomever We wish.”
As in the verse in which Allaah Says (what means): {And when a sign comes to them, they say, “Never will we believe until we are given like that which was given to the messengers of Allaah. Allaah is most knowing of where [i.e. with whom] He places His message. There will afflict those who committed crimes debasement before Allaah and severe punishment for what they used to conspire.}[Quran 6:124]
If the logic that you mentioned in your question is true, then this would imply that all the people would be Messengers and Prophets. If they were all as such, then to whom would they be sent? Would any sane person say this?
Your statement in which you described Allaah to be unjust necessitates disbelief in Allaah and apostasy from the religion of Islam, so you should correct yourself and sincerely repent to Allaah. Apostasy means the loss of this worldly life as well as the Hereafter. Allaah Says (what means): {And whoever of you reverts from his religion [to disbelief] and dies while he is a disbeliever -for those, their deeds have become worthless in this world and the Hereafter, and those are the companions of the Fire; they will abide therein eternally.}[Quran: 217]
We have already warned you several times and we still urge you to occupy yourself with what benefits you in your worldly life and your religion.
Allaah Knows best.