I'm having to write an argumentative essay for school. I decided to make my own topic sentence since the options given did not appeal to me. The problem is that I am at a loss for wqords. I LOVE this topic.. and have so much to say, but as my friend say: " You start to thinking too hard anout things and get too complicated to put it into words". Unfortunately she is right, and I need help with this! So far all I have is this:

"In  a  world  where  human  rights  are  constantly  fought,  the  majority  of  people  seem  to  have  forgotten  about  a non-human,  sentient  race  whose  rights  have    been  completely  violated.  This  race  has  been  subjected  to  numerous  cruelties,  yet  few  people  care  to  solve the  dilemma.  The animal  race  has  quietly  suffered  through  factory  farms,  slaughterhouses,  batting  cages,  and  many  other  forms  of  torture.  Until  recently,  few  people  realize  what  heinous  treatment  animals  are  put through.
      In  olden  days  animals  were  allowed  to  live  their  lives  peacefully  and  happily  until  they got  old  and  were  killed  for  meat.  Cows  spent  their  days  grazing  in  pastures,  pigs  strolling  in  their  pens.  Sunlight,  water,  and  compassion  were  given  to animals  without  a  second  thought.  However,  nowadays  Cows  are forced  to  live  in  factory  farms,  never  seeing  sunlight  until  they  are  being  transported  to  a  slaughterhouse.  Although  the  normal  life  span  of  a  cow  is  20  years,  they  are  killed  after  5 years  since  their  milk  production  decreased,  making  it unprofitable  to  leave  the  cow  alive.  Pigs  live  in cages  so  small they face  difficulty  in  turning around.  The  transportation  to  slaughterhouses  is  undeniably  cruel.  “Crammed  together,  animals  must  stand  in their  excrement  while  exposed  to  extreme  temperatures  in  open  trucks,  sometimes freezing  to  the  trailer.  Approximately  200,000  pigs  arrive  dead  at  U.S.  slaughter plants  each  year;  many  of  these  deaths  are  caused  by  a  lack  of  ventilation  on  trucks  in  hot  weather”    Upon  reaching  their  destination,  the  cruelest  part  of  their  inhumane  treatment  is  ...."
I don't know where to go from there... Any ideas??