The person must practice being a human in order to become good at it. This will frequently involve overcoming inherent weaknesses. In contrast, actualization theorists are likely to believe that adequate loving and such obviously constructive things come quite naturally to the undefensive person. Fromm seems more a perfection theorist than anything else. Erich Fromm - C. George Boeree.
Hoarding is associated with the cold form of withdrawing family, and with destructiveness.
I might add that there is a clear connection with perfectionism as well. In its pure form, it means you are stubborn, stingy, and unimaginative. If you are a milder version of hoarding, you might be steadfast, economical, and practical. The Two Voices of Erich Fromm - Michael Maccoby. James described and contrasted three personality types.