" This was a thread about changes to IHT, to which I am opposed on both political and ideological grounds."
Yes, and the objections to it are that taxation is theft and that you shouldn't have to pay more than you want to/or currently have to.
In fact you wouldn't pay more of anything, and the vast majority of people would, the difference is that some people would pay slightly more on income that they have not earned.
I utterly understand the arguments I am making.
" Its so unfair of these parents to try to do the best for their children"
Again an allegorical appeal to emotion and virtue. There are great many parents who work 3 jobs, and didn't get a great education, who work hard, and for whom it does not pay off.
The fact is that the "hard work pays" stories are not related to the data which shows that social mobility has deteriorated since the
1970's. Rising inequality is a massive issue in our society.
The changes to IHT were recommend as a part of a Resolution Foundation report on resolving levels of inequality and how to resolve some of the issues that are debated on MN every day.