I don’t think that we have a free will. I believe it is essential that we act like we have one, and our nature and evolution have made it so that we all have the illusion that we have free will. There are many arguments against this idea, and as many in favor, I just ask you to look around and in yourself. If you look at us as a collection of inherited traits, the parts in you that come from your mother, father, and the rest of the family before them.  That’s the “mechanical” part of you, including the brain, that will do most of the work once you start living. During this living, you will be exposed to your culture and the values and morals of your surroundings. You can have a wide range of influences, but you will never be influenced by everything. You will be unique but, at the same time, a unique representation of your experiences. Your experiences will make you react to what the world will throw at you. You feel that you have decided to vote left or right, but your past, the clothes you wear, and the friends you have have already decided your path, your choice. Your choices are your surroundings reflecting in you and who you are without conscious interference.  

All the arguments going around inside you for why you choose the way you do are no explanations for why you consciously choose but for why you seem to have chosen.  Think about what you do when you lift your arm. You only see it move, but many decisions are made hidden from you. All the muscles and different signals have to start moving without your conscious awareness. You think you move your arm, but at most, you have given it an order. The thoughts you have and the words you speak are more or less like that. You only become aware of what you think after your brain has done a lot of unconscious processing. You might order your brain to think but it does most of the work for you, without you. 

We’re a government that believes in everybody having the illusion of free will.
 Anthony Burges