1) Selling arms is not foreign aid.
2) Turkey is secular because of a very strict separataion between religion and state. (Laizism has been a fundament of modern Turkey since 1923.) You're not allowed to show religious symbols in schools and other official institutions. The Erdogan government tried to allow women to wear headscarves in universities, which is a pretty normal thing for Muslim women in most European countries. The Supreme Court decided that that law was against the laizist constitution.
Although foreign aid is construed as monetary, selling and sharing military technology can be construed as aid. The Obama admin used this to put pressure on Turkey not too long ago. I guess there are pros and cons to Turkey's secularism and I agree he should not have used the word terrorist.
