@Gasp0deTheW0nderD0g
As far as I can make out, it was unfair for farfetched not to be left the whole of her mother's estate and instead have to share it with her siblings, but she thinks *@Wisforwater* is grabby for being sad that her mother is proposing to leave everything to her sons and next to nothing to her daughter. Right-o.
You make out wrong.
What is wrong is putting pressure on an elderly parent to change their will to suit you (particularly if you don't need the money, but even if you do, frankly).
Both the OP's dm and my dm made their wishes clear in their will. I certainly didn't try to influence that in any way, in fact I was very surprised when my DM told me out of the blue she was changing her will to leave it all to me. I said I wanted her alive not her money and that it wasn't for me to have an opinion on. My db then forced her to change her will, not once, but twice (every time she tried to leave it in any way in my favour, he put her under huge pressure).
I lost count of the hundreds of times she told anyone who would listen how upset she was about his behaviour. As I was personally involved, I didn't feel it would be right to get involved in the discussion.
Now she is no longer here, of course I'm sad about the money - which would have been life-changing for us, but just means a few more first-class flights for my db.
But it's not the loss of money that bothers me primarily. It's that my mother was not able to have her final dying wish respected, and died knowing her dd and dgc would lack the financial security she so wanted us to have.
I can only assume you're not a parent, or you would understand why making sure all your dcs and dgc are financially secure matters so much.