muslim countries

Eating from KFC and McDonalds in Muslim countries

Q:

1. Are we allowed to eat meat from food outlets such as KFC, McDonalds and other local outlets in Muslim countries such as Saudi Arabia, Dubai and Turkey?

2. Also, when eating from a local outlet is it ok to trust the individual if he says the food is halal?

3. Also, I have contacted Delphin Hotel in Turkey, Antalya regarding if their meat is halal or not and they replied by saying that they produce their own meat which is cut according to shariah slaughter and I asked for proof and they sent me a video showing how the meat was cut and it seemed legitimate, they also said that if I was to come to the hotel they will show me how the processes in their slaughterhouse, is it permissible to trust them?

Islamic countries

Q: I just need to ask you about something and that is I have found out that most of the Muslim countries are secular muslim countries and its government are secular government. I just want to ask can we call those countries and its people muslim countries and are we as muslims allowed to make the countries into muslim countries and muslim state or khalifa and make the law into sharia law and are we allowed to over throw the government and make it into muslim government and make the law into Sharia law? I have found out that the people in those muslim secular countries and its secular government that they are muslim but do we call them muslim people and muslim countries or what do we do and what do we call them?