turkish is in ural-altaic language family. so basically english is closer to Arabic than Turkish.
turkish is similar to hungarian, finnish, mongolian... theese languages share same root.
There are 112k words in Turkish language and only 6k words of them are arabic
also 5k of them are french.
but turks using some arabic words a lot in daily cuz of islam. etc: selamun aleykum, allah, mashallah...
so thats why you think the turks speak arabic. but that words only about religious nothing more.