Brookstein, who won the first series of the programme in 2004 but was later dropped by Cowell, affirmed his support of Rage Against The Machine's 'Killing In The Name' for Christmas number one.
He wrote: "Before X Factor gimps have a go, I will tell you this and I sware (sic) on my son's life, I was not bothered that my single 'Against All Odds' went to number one and I wasn't bothered that my album went to number one. I just wanted to make good music - and not the pop schlop associated with Cowell.
"Unfortunately. I was dropped because I wouldn't play the game. Now to my point - X Factor is on for four months - surely winning the show and getting a deal is enough for any artist."
Brookstein added: "To release for Christmas is just mega rich Simon Cowell doing a f**k you to Santa Claus, Rudolph, all the little elves, Frosty and not forgetting Baby Jesus. What a douche!"
> Joe McElderry 'favourite for Xmas No.1'