Your analogy made no sense. Either you knew there was a second fee or you didn’t. If not, that’s your fault. If you did, you should plan accordingly. Or if the second fee changed (and you couldn’t have known) that’s the unfortunate reality of life.
I’m well aware of what double taxation is. As you pointed out earlier the concept of double taxation is not an issue of right or wrong. So I don’t know why you keep bringing that up implying that double taxation is wrong. what is the difference between passing money to your kids and spending it at a store and paying sales tax?
You can know about the second fee, and it can still be unfair. You get the concept of mutual exclusivity, don't you?
When I decide to employ money I have made (which has already been taxed) the manner in which I employ this money often comes with expense/risk/cost. For example, choosing to purchase a car is a decision to buy the car for the offered price and sales tax. I see the car, calculate the cost and make the decision. If I don't want to pay the tax or the tax is too much, I don't buy it. Maybe I pay cash to someone on Craigslist for a car. Choosing to invest in the stock market with my money (which has already been taxed) comes with risk of loss. If I make money on that investment, the money I make is taxed via capital gains. That is the price to pay.
At the end of my life, when I wish to bequeath my wealth to my family, I don't have a choice. Sure, I can give it away to charity at no cost, but the choice of giving it to my family or someone else I am not related to is not really a choice (unless I don't want them to have it, in which case I suppose I could set fire to the money in a parking lot or something). All the dollars that I made, and previously paid tax on, have to now be taxed again because I am gifting them to my family.
The fact that you cannot see the difference in this is extremely telling. It speaks to either one of two possibilities, both extremely disconcerting. Either you can't grasp it mentally, or you choose not to. Either you can't recognize the difference because of faulty wiring, or you simply can't bring yourself to say "I see your point, there is a difference." because you believe it gives up the right to be pro the estate tax.
I'm here to tell you. You can recognize the difference and still be for the tax.