Their easily refuted reasoning is that this creates wealth stratification where one family keeps all their wealth for generations.
In reality, over 80% of millionaires are first generation,
and most inherited wealth is gone within one generation and in rare circumstances it might last two generations.
Thanks to decades of hard work and self denial my father was rather comfortable during the last 40 or so years of his life (my mother died 40 years before him).My Dad was a child of the Depression,and one of 8 children of a man crippled by TB and,as a result,he grew up in the filthiest Irish ghetto of Boston,"Southie".And while he was growing up one could routinely see signs in the windows of Boston "no Irish need apply".His older brother,particularly,used to speak often about that.