In addition the Galatians were always a minority in Galatia to begin with and even more so when the Romans expanded the area for administration purposes while keeping the name. By the Christian Byzantine era there was an almost complete assimilation into the Hellenistic culture of Anatolia. In fact the Christian natives of Galatia maintained their Hellenistic/Byzantine culture right up until the 1920s. The Celts were never large enough a population to have an impact on the DNA inheritance of other peoples especially almost 1,000 years after a small number of them arrived in Anatolia. Their "Celtic" culture long since vanished by Christian Roman times. Native artificats from the region indicate a complete Hellenistic culture and langauge.
Recent DNA tests show no major DNA similarity with European populations among Turks.
muawiyah's statements about "Celtic Turks" is romantic garbage and as much fiction as Star Trek is. His posts were a great waste of time over nonsense.
Turks, Estonians, Finns, Hungarians, Koreans, Irish, Scotts, Chinese, Japanese, Nilotics, etc. IN THE USA speak the language of trade called English.
Turkish is a very widespread trade language, as is English. Speaking either says nothing about your ethnic heritage.