I get that a column is meant to be biased, because all opinions are born from a bias.  

What I question is, might your disinclination towards NASCAR lead you down the wrong path for this column?  What I mean is, in particular, your assessment on the amount of fans attending each race, and the amount of waste they leave.  I'll round up and say that there are 200,000 spectators once media, staff etcetera are factored in.  That is a great number of people, especially to be in one place.  

But, by comparison, how many people fill NFL stadiums each week? At minimum there are 50,000 people in one stadium.  Multiply that by 16 and NASCAR can not compete.  

I did like that you were fair, and offered a rebuttal to your own argument.  That's what good journalists are supposed to do.  

As a suggestion:

You don't like NASCAR.  I assume the reason why you don't like NASCAR is not just because of the environmental issues.  So, there is more to it than that.  Tell us about them.  The environmental issue can become just one of a few factors in your article on why you don't like NASCAR.

But, drats, why does it matter what one individual likes or dislikes?  How about..."Why NASCAR Won't Become a Major Sport" by  JWalte04.  :)