Warnock said: "I've made the players aware of what I think but I think at this moment that is best left in the dressing room. They know how bitterly disappointed I am with some of them.
"It hurts, and I'll be hurting tonight. And I know some of the lads who will be hurting as well. My challenge is make sure that they are all hurting just as much.
"It's difficult because there are a lot of players who are out of contract this summer and know they will be leaving the club. There is a malaise around the club and that has to be dealt with.
"The players have got to take responsibility and look at themselves in the mirror. I've told them these are the times when you blame referees, like I always do, or the state of the pitch or anything.
"But this is when players have got to look at themselves in the mirror and not blame anything else."
Blackpool caretaker-manager Tony Parks accepted the early dismissal
"I've no complaints about the sending off. There is only one man to blame for that, and that is Ian Evatt (who's back pass put the keeper in an impossible situation), not the referee.
"But we responded well and battled very hard. I'm not sure we deserved to win the game but Crystal Palace didn't have too many chances.
And he added: "I've always had an appetite for management and it doesn't do any harm winning games if you want to stay in the job."