The Problem Is Not With The Athletes,

To Give Preference To The Life Of A Being Simply Because That Being Is A Member Of Our Species Would Put Us In The Same Position As Racists Who Give Preference To Those Who Are Members Of Their Race.

I Do Not Believe That It Could Never Be Justifiable To Experiment On A Brain-damaged Human.

In Appropriate Circumstances We Are Justified In Using Humans To Achieve Goals (or The Goal Of Assisting Animals).

I Am Not Saying That Factory Farming Is The Same As The Holocaust Or The Slave Trade, But It's Clear That There Is An Immense Amount Of Suffering In It, And Just As We Think That The Nazis Were Wrong To Ignore The Suffering Of Their Victims, So We Are Wrong To Ignore The Sufferings Of Our Victims.

To Be A Utilitarian Means That You Judge Actions As Right Or Wrong In Accordance With Whether They Have Good Consequences. So You Try To Do What Will Have The Best Consequences For All Of Those Affected.