To win an argument is not easy, that being said it is not impossible.
If we are discussing how to win arguments we have to find out what makes a person change his or her mind. The three points that are important to know are the beliefs, ideas and values of the person you are debating. A study in 2017 said that a group of liberals were more likely to support increased military funding if you argued for the equality and the job opportunity it makes for people that has fewer options in life. this worked because liberals value equality over loyalty. If the study had conservatives instead of liberals they would have to use loyalty instead of equality when discussing increased military spending.