Jerry has admitted that he has done a bad job as GM and he would have fired any other GM with that poor of a job performance. Of course his ego will not allow him to step down and bring in a real GM. Garrett has been Jerry's pick for head coach for a long time and once again his ego will not let him admit he was wrong. Every since Jimmy Johnson left, Jerry has put his ego and pride before the success of the team. He wants to win, but he refuses to put the team welfare before his need for all the attention. I thought that things would change with Stephen, but he hurts the team in a different way. Stephen is more worried about money than winning. Let's be honest, as long as the games keep selling out and the money keeps flowing in, they have no reason to run this team like other teams in the NFL.
The highlighted portion of your comment above is false. Jerry has brought in Will McClay to provide all the functions that a GM provides. And Will McClay has worked with the Head Coach to find players to fit his system - which is what every good General Manager does.
So Jerry's ego has allowed him to admit he's made mistakes, and since that time he's brought in Will McClay, which has dramatically improved how the team operates. In spite of the fact that Jerry still has impulses, he subserviates those impulses (with the help of his son Stephen) to the general decisions of his hired staff - which is EXACTLY what everyone has been calling for him to do. Of course, you might say that a REAL GM would fire Garrett, but that is simply you projecting your opinion onto Will McClay. Also, no GM has carte blanche to hire or fire as vital an employee as the Head Coach without the buy-in of the ownership of that team. In fact, many fans want the Cowboys to hire a person who doubles as Head Coach and GM - like Belichick, and reports only to the owner - which is simply incoherent given that they complain that Jerry won't fire Garrett.
Also, it is impossible to fire yourself from your own life. What many people are really calling for is for Jerry to die, which I find really disturbing. Some come right out, and wish explicitly for his death. They should be ashamed of themselves.
And yes, I know I'll be accused of being an apologist for Jerry, when in fact I was one of his biggest critics before he restructured how he runs his organization. The reality is that Jerry has ALWAYS deferred to the football people in his organizations. The biggest problem he had between Jimmy Johnson and the current structure was he was listening mostly to Larry Lacewell, who was simply awful for the Cowboys, beginning with the draft of 1995. Both before and after Larry Lacewell, the team has performed much better - which is why I think the "22 years without a SB" thing is overwrought and too simplistic.
Do I think Garrett is on thin ice this year? Yes. Do I think the Cowboys will likely have a strong year, which will preserve Garrett yet again? Yes. Do I think Garrett can take this team to a championship? I don't know. I have my doubts like many others. The clear thing is that he must improve - just like Dak, Dez, Jaylon, the Oline, the interior Dline, the linebackers, the young secondary, etc., etc. must improve in order for the team to win.
Acknowledging the need for improvement is different than demanding someone lose their job. I wish we could have honest, civil conversations about how the team needs to improve, without the corresponding plethora of fans who act like a lynch mob with blood lust, demanding someone be flayed alive, then strung up on the nearest tree. Do I demand that Jerry die because the Cowboys haven't won a Super Bowl since 1995? Absolutely not. Jerry's tried...and failed...and failed....and failed. That doesn't warrant a death sentence. It just means he needs to try again...and keep trying...and keep trying. In the meantime, I will discuss how the team can improve. What I won't do is provide air cover for those who are part of the lynch mob.
In my view, the OP was calling for apologies from the lynch mob. He wasn't calling for the end to general criticism, or suggestions for improvement. He was simply acknowledging that emotions briefly got the better of him, and was rightfully ashamed of some of the things he said about the FO. Good for him. Shows he has a conscience. What is everyone else's excuse?