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

[Joe Nation]

9. Thank you. Good advice.

A few clarifications:

There is no inheritance of any kind. The level of care is absolutely necessary and soon to increase. They completely agree with the care needed. They are just unwilling to pay any amount. Their children are adults at this point. Finally, my wife is a phenomenal caregiver and loves her mother very much. She has always been the one to attend to her mother's needs. All we are asking is for the other two to contribute to the cost of the care she needs. The sad part is that they have money and they are working but consider their own needs above all.