Actually, I dont think there's anything wrong with the use of the name Isa al-Masih for Jesus Christ.
Theophilos78 is an arabophobe. There is nothing more behind that. It wouldn't be bad if he weren't trying to explain his phobia with theology.
No offense taken. Wishing you good luck with the false god of the Arabs although I am sure the God of Israel (Elohim el Shaddai) is going to prevail. 
This happens a lot. I've seen many cases like this one: many people who convert to Christianity from an Islamic background grow to hate everything about their Middle Eastern culture. This makes me very mad. Don't let the Protestant Evangelists trick you into believing that you should cleanse your culture of everything that is Eastern, otherwise you'll be proving what the mullahs/imams say, "Christianity is Western and the Converts are Western spies out to destroy _____culture".
Did you know that about 30 percent of the Arab people are Christian, even more than that if you count the diaspora. Arabic was used in Christian liturgy long before it was ever used in Islamic Salat/prayer. Even the Yemenite Jews use the name Allah when referring to God in their Arabic prayer portions. The Arab Christians use the name Yassouh al-Massih to refer to Jesus Christ. The name Yeshoua is Hebrew, not Arabic and certainly not Turkish. I dont think its wrong that converts from Islamic cultures should continue using the name Isa al-Masih. As someone pointed out, St. John of Damascus was an Arab and in almost every icon, he is depicted wearing the traditional Arab keffiyeh or shemagh.
Turkish culture is a beautiful melting pot, the Arabic culture has influenced Turkish culture makes the culture even more beautiful in my opinion. Turkish Turks in particular, should be proud of their culture because it tells their great history, although the Christians suffered under the Ottomans and the the great city of Constantinople was put away by them, I still find Turkish culture and its Arabic roots to be quite fascinating.
When Christians use the name Elohim, Jehovah, YHWH, etc. it doesn't look good because the Christian canon law forbids Christians to "Judaize" or bring Jewish customs into the Church. His sacred name, YHWH, is not to be used at all because the canons also forbid that. Allah is not the name of God but it is a translation of the word God. Elohim or Adonai is the name that Jews use to avoid using the name YHWH. Orthodox converts from Judaism use this name but I dont think anyone should unless your culture is influenced by Hebrew.