I have very mixed feelings about it.
Freedom Tax, as all inheritance should be abolished
So I couldn't even bequeath my kid a book or an old family heirloom after my death?
Banning inheritance in a Marxist setting in practice would mean that when you die, your belongings would go to whoever needs them, not necessarily your children. Family heirlooms, like you mentioned, aren't likely to be useful to anyone outside of the family, so they would be given to your family
What if it's a valuable collectible that a poor person could find handy?