Who are you to make that decision for someone?
And, frankly, you're delusional if you think an estate tax is non distortive. The entire meaning of wealth would change for the elderly.
One cannot treat wealth like a zero sum game. More importantly, we need to rid ourselves of this growing crabs in a bucket mentality, because we all suffer when we hold society's best back. Is it "fair" in the sense of absolute wealth? No, but people shouldn't be so focused on their neighbor's plate then theirs is full enough that they can spend hours complaining online about how much more money the 1% have. Perhaps we should redefine fair wealth distribution to rightfully consider merit, which is shockingly absent from the majority view here.