IMO the government is responsible for more than 25% of the vast majority of people's savings, so a 25% inheritance tax sounds fair. Maybe a few people really were innovative enough to have earned more than 75% without the government but that number is small enough to not matter.
Your comment suggesting that losing 68% after 100 years is similar to keeping 0% is very strange to me, those don't seem similar at all. And then the 68% doesn't even account for growth, which has always been greater than inflation in the past.
Generally the idea that people 100 years from now should be able to live off the labor their ancestors did 100+ years ago seems absurd to me. Those people did nothing to deserve that wealth.
I think income taxes should be zero. The government should be funded mainly from land value tax, since land belongs to society as a whole and not some individual who was passed it by someone who never had the right to claim it in the first place. VAT and Pigouvian taxes are good options too.
In the end the government has to be funded somehow, the only question is how? Taking money from those who did not earn it seems the best option to me.
Your comment suggesting that losing 68% after 100 years is similar to keeping 0% is very strange to me, those don't seem similar at all. And then the 68% doesn't even account for growth, which has always been greater than inflation in the past.
Generally the idea that people 100 years from now should be able to live off the labor their ancestors did 100+ years ago seems absurd to me. Those people did nothing to deserve that wealth.