Nationality (on its own) is not a good reason to support something

Since my main problem with the definition of "good reason" was the portion regarding "founded on facts", I accept my opponent's revised definition and am ready to advance in the debate.Rebuttal 1 - Implicit PropositionsWhen examining the parties involved in a situation like the one brought up by my opponent, he excluded nationality as a group that has authority to oblige a person to support another unconditionally on the grounds that nationality was only "shared characteristics". However, for many (youths in particular), members of the same nationality have similar cultures and beliefs. Also, members of the same nationality have often grown up together (even unpersonally) and therefore there is a bond within members of a nationality. Therefore, based on honor and these bonds, there is plenty of obligation in the field of nationality to unconditionally support those who share their heritage.Rebuttal 2 - The Toronto Maple LeafsFirstly, my opponent argues that unconditional cheering based on nationality drops the quality of games in sports since this leads to a team no longer competing for support. However, my opponent clearly stated earlier in his argument that the competition and entertainment generated in sports is derived from the goal of winning the actual games, not winning the support of its fans. Therefore, I don't see how my opponent's argument makes sense.Argument 1 - Nationality is a good reason to be a fan of a sports teamI see three main reasons to become an actual fan of a team:1) Previous family members or friends were fans of that team and influenced you to also be a fan of that team.2) Bandwagon - Either a lot of the population are fans of that team, or that team has been doing relatively well, so you are convinced to be a fan of that team.3) Nationality - You were born an area with an established sports team, so you become a fan of that team.Given the situation that you have no family members that are fans of the sport in question, or that you are not a person to be susceptible to bandwagon (as that is sometimes looked down on by major fans of a sport), the only logical and rational choice left would be to become a fan of the team that you were born near. Like I mentioned above, there is a sense of pride and honor you gain from being a member of a nationality due to the culture and friends you were raised with. Therefore, based on those facts, it would make sense to make your decision of a sports team based on that. Rebuttal 3 - The Nuremberg TrialsMy opponent argues that case no. 3 of the Nuremberg Trials that followed World War II supports the pro standpoint based on the fact that the German judges who stood trial defended themselves with the argument that they were following the laws of Germany. However, during World War II and Nazi Germany, punishments for NOT following the strict laws of Germany were beyond harsh. After World War I and the Treaty of Versailles, Germany was in a huge economic depression due to the strict nature of the treaty. After Adolf Hitler and the Nazi Party came into view, many pledged their allegiance to him because they believed that the Nazi Party would carry Germany out of their depression. Nazis had to follow the strict laws laid down by Hitler and the Nazi Party, or suffer the grave consequences. If Nazis believed that by following the strict German laws and being a Nazi was going to carry them out of their depression, then the majority of them were eager to do it. They were most likely convinced to follow the laws of Germany above all other laws because not only of the consequences that awaited them should they break those laws, but also because they wanted to win the war and support the party that would supposedly pull Germany out of one of their greatest depressions in history.In these rebuttals, I have shown that my opponent's arguments are far from sound and how each of these situations (and other situations for that matter) support the con standpoint. Good luck to my opponent as we advance into this debate's final round.