Hungarians may have greater chances to be "brothers" than, let's say, French people. But to what extent?
What Jura said is mainly true, about blood, history, and language...But still I am not sure about her conclusion. Because religion is a very important criterion for Turkish people. For example, I am almost sure that they will prefer Bosnian people or Palestinian people over Hungarians, as "brothers". Maybe you are aware of the conflict between Turkish people and Kurdish people. They have more commonalities than Hungarian people but an important part of the nation does not consider them as "brothers". Instead, they consider them as "enemies".
What I have written is a generalization. Of course there are many educated Turks, who consider not only the Hungarians but also every nation to be their brothers...as the way it should be.