If you’re trying to be humorous, then I congratulate you, because that really is a rather sophisticated joke.
On the other hand, if you’re not attempting a joke, then I suggest you ought to have a good think about what you’ve written.
You wrote: “Those who support your argument have a preconceived notion that is not based on actual experience or reason. That is the very definition of prejudice.”
Now just try to think about that for a minute. You’re making some rather accusatory claims about all the people who support my argument. You’re claiming they all have a preconceived notion that’s not based on experience and not based on reason. But how would you know these things? How would you know why they support my argument? How would you know they had a preconceived notion that was relevant to why they support my argument? How would you know whether they based this notion on their experience? How would you know whether reasoning played any part in them forming this notion? Most of them are probably people you’ve never met nor spoken to in your life. And you’re lumping them all together and accusing them of prejudice?
And you make these accusations without even specifying what this ‘preconceived notion’ might be!
As I say: Congratulations if you’re making a joke!
In answer to your question: They do matter. But what I’m proposing is that we get rid of some of the unfairness in the way we organise sporting events.