Sorry for the delay.
The problem you face is that this is considered community property (marital property)
The court is not going to reduce that award based on her current earnings. It is not like alimony or spousal support
where it is based on need...marital property is based on contributions from either spouse during the marriage. She was married to you while you earned the pension, so she gets part of it.
Now...it could be that you are entitled to part of HER retired pension (since you were married to her during a portion of the time she earned that pension).
The problem you have is that in order to get a portion of her pension you would need to have the decree of divorce modified. That is tough to do. Unless you can show fraud on her part during your divorce proceedings the court is unlikely to modify that decree.
Had you asked for it at the time, the court could have held the decree of divorce open pending her potential retirement (to allow you to calculate your portion of her pension). But I suspect that did not happen. And since it did not, it will be difficult, if not impossible, to go back and change it now.
I am sorry to have to bear bad news.