If I have to tell the world what makes me a Muslim, I will use the very same words that one of the companions of the Noble Prophet (peace be upon him) used when he was asked the same thing by the King of Abyssinia, Negus.
It is a compelling description of what Islam really is, and what the true message of the Prophet Muhammad (peace be upon him) is for ALL mankind, as a Messenger of God. And the world should also know why any attempt to disgrace our Noble Prophet is so sickening and exasperating, and why we regard him the most after God and respect him in a way no one else is. You will know once you read it:
"We were a people in a state of ignorance and immorality, worshipping idols and eating the flesh of dead animals, committing all sorts of abomination and shameful deeds, breaking the ties of kinship, treating guests badly and the strong amongst us exploited the weak."We remained in this state until God sent us a Prophet, one of our own people whose lineage, truthfulness, trustworthiness and integrity were well-known to us."He called us to worship God alone and to renounce the stones and the idols which we and our acncestors used to worhip besides God."He commmanded us to speak the truth, to honour our promises, to be kind to our relations, to be helpful to our neighbours, to cease all forbidden acts, so abstain from bloodshed, to avoid obscenities and false witness, not to appropriate an orphan's property not slander chaste women."He ordered us to worship God alone and not to associate anything with Him, to uphold Prayer, to give Zakat and fast in the month of Ramadan."We believed in him and what he brought to us from God and we follow him in what he has asked us to do and we keep away from what he forbade us from doing."Thereupon O King, our people attacked us to make us renounce our religion and take us back to the old immorality and the worship of idols."They oppressed us, made life intolerable for us and obstructed us from observing our religion. So we left for your country, choosing you before anyone else, desiring your protection and hoping to live in justice and peace in your midst."
These are the words of Jafar ibn Abi Taalib who was among the first who became Muslim when the Prophet (peace be upon him) gave out the message in Makkah. And well, King Negus also accepted this message and became a Muslim, (after also asking what Muslims thought of Jesus (peace be upon him).
Prophet Muhammad (peace be upon him) was sent as a mercy to all mankind, and this was his message, that's the reason his companions stood for it, and always defended it. And this is what makes me a Muslim.