Rand's problem was with cumpolsory charity and kindness extorted at the point of a gun, such as when the government takes part of our earnings and gives it to someone with what they consider a greater need for the money. Rand felt that charity and kindness were to be given for what they added to the life of the giver, not as some penance for success.
And the voluntary aspect is the critical point.Otherwise it becomes confiscation of hard earned wealth.
And,if you really think about it,even in most socialist states,the redistributed wealth rarely goes to”the people”but to the State bureaucrats.