I get the argument that no inheritance tax is rewarding those who already have money and widening the gap. I am on the fence about this too as dh and I are likely to have a very good inheritance tax in the future. Dh because he is an only child and both parents own their homes outright (assuming this money doesn't all go on their care)
I am on the fence as I know I am extremely lucky to have this having not done anything to earn it myself. I don't take this for granted and I get the argument that it's widening the gap and many people can't get on the property ladder and so the cycle is likely to continue as they have nothing or very little to pass onto their children and their grandchildren etc.
But at the same time I feel it depends how the wealth was gained in the first place. My father worked very, very hard for what he has and sacrificed family time, relationships and mental health to get it. Yes, I know others also sacrifice these things and don't get it.
He was extremely ambitious and worked hard. He started as a post boy in a large company and continued to rise and rise until eventually he was the to CEO of that company. An incredible achievement. My mum and him didn't always have money, they struggled but by the time I was born it was a different story. By that time he had money but the sacrifice was pretty much missing me growing up, large amounts of time away from us and as a result a strained relationship between df and myself. I personally don't put so much value on money and achievement that I would make these sacrifices.
However, as I ve got older the resentment I felt for my dad in my younger years have turned more to admiration. I know now, which perhaps I didn't understand before, that he did it all, yes for his own ambition and lifestyle he desired, but also to set his children and grand-children up so we can buy homes, study if we want to and have a good lifestyle. Why shouldn't he do this? Why should a large percentage of this money go to the government when my father worked so hard for it? Should we all be punished and penalised for his achievements? No in my opinion they should not.