Should I be angry by the lack of support my wife's family is willing to contribute?

[MaryMagdaline]

4. These situations are complex.

Saying “I can’t contribute” might really mean “I don’t agree with your decision to get mom private care. I’m totally ok with her being in a Medicaid only nursing home without any of us dipping into our own pockets.”
I don’t know what your in-laws contributed to their children and whether they favored some children over the others.
I don’t know if your MIL was unkind to any of her children.
I don’t know if your in-laws are ok with giving up their inheritance while you care for your MIL or if they are the type to have their hands out.
If you are getting totally dumped on, then yes, you have a right to be angry but you might as well consider your wife as an only child and act accordingly.
Be prepared, however. The caregiver gets abused even by the sick or elderly person. The more you do, the more you get blamed.
Please have a care plan for you and your wife … time set aside for your own events and your own time alone. Take care of your own sanity.
Been through it with MIL and husband. Watched friends go through it. Caregiver stress is some of the worst stress I’ve ever experienced.