First one question, what did his wife/your sister have to say/do when she heard his thoughts? That may guide your future actions more than anything.
My take, your parents money and how they spend it is none of his business. These are not "His" parents, they are in laws. With the divorce rate the way it is there is a good chance that he wouldn't be around to see any money anyway. Plus, parents owe nothing to the children. What they choose to give is just that, their choice. They may have to spend a substantial part of, or all of, their wealth prior to their death. Shit happens.
I'd probably have said to him "It's not your money and you need to keep your opinions to yourself. If you are not able to tell my parents directly what you think they need to do, there may be a way that your opinions can be forwarded on to them."
My take, your parents money and how they spend it is none of his business. These are not "His" parents, they are in laws. With the divorce rate the way it is there is a good chance that he wouldn't be around to see any money anyway. Plus, parents owe nothing to the children. What they choose to give is just that, their choice. They may have to spend a substantial part of, or all of, their wealth prior to their death. Shit happens.
I'd probably have said to him "It's not your money and you need to keep your opinions to yourself. If you are not able to tell my parents directly what you think they need to do, there may be a way that your opinions can be forwarded on to them."
Being told you're delusional does not necessarily mean you're mental.
