Hi again Carissa! Let me understand what you are saying. Your arguement is that animals & handicapped people are inferior because they cannot do some things that would be considered as "useful" to society. You think men and women are both superior and inferior to each other so that balances out to equailty. And you justify hurting another sentient being as acceptable if it is "beneficial to our future" and what you would consider advancing mankind.
You maintain that for anyone to be against animal experimentation they need to abstain from using any product or benefit from any knowlege that was was at least partially obtained through the use or testing of what you would consider inferior beings or we are essentially hypocrites. Do I have that right?
I think the first fallacy I see in your reasoning is what makes someone useful. Lets consider the situation in Haiti. Are the humans who are dying in that country inferior to the animals who possess the capability to survive after a natural disaster? Does someones inferiority or superiority flucuate with the situation they are in. Elderly people by your reasoning are inferior to young people since young people possess more "useful" abilities.
Animals are often stronger, faster, have better eyesight and hearing than humans. They are usually self-sufficient whereas thorughout history humans have been dependent on using animals to survive. Which species do you think is the weakest in that scenario? Does a human's ability to enslave another being make them superior? I think that leads you back to slavery and when can you ever justifiy that?


You have decided they are less useful therefore inferior on what grounds? Do you not think that individual animals matter to others in their group? Do you deny the "use" that animals provide in their realtionships with human though friendship, inspiration and observation? I can't imagine a world without other species and I don't know how we can have this dichotomy where we adore animals one one hand and with the other hand inflict soo much pain on them. 
