I believe in a meritocracy but NOT in inheritance tax.
The inherited wealth comes from the parents' merit - which was taxed when earned.
It's entirely rational to want to use your talents to not only provide for yourself but also for your children.
I might be convinced that a portion of inheritance should go in a LISA or something though... maybe.
I agree it's completely rational to want to provide for your children. But that is rewarding individuals disproportionately through no merit (key word here) of their own. It's about the least meritocratic sentiment possible (beyond random enforced changes in wealth) to want zero inheritance tax. It's literally a random assignment of wealth amongst individuals of a similar generation.
disclaimer, I probably will inherit something, and I'm not saying I think inheritance tax should be any higher than it is, but that zero inheritance tax is just vastly un-meritocratic.