Should an individualist care about his culture?
Doesn't it seem like a contradiction? An individualist, after all, only cares of himself and his work, which he performs, like Howard Roark in The Fountainhead, at any expense and to the best of his abilities. At no point in that book did the character stop and bemoan how the culture of the left, the work of Ellsworth Toohey, hinders him in his endless research for perfection in architecture. Which, however, hardly means that no judgment is passed upon it in the text.
Multiculturalism, as part of modern left doctrine, arose afterwards. It is based on judging cultures not by their objective features, by the values they espouse and the policies that arise from them, but merely by their differences: any culture which is not our own is not ours to judge in the first place. As a matter of fact, even attempting to do so - which comes quite naturally when hearing about, let's say, genital mutilation in your neighborhood - is frowned upon. No one who isn't afraid of his own logical abilities should have a problem in seeing the fault in such behavior.
Just because a line of reasoning is faulty, however, doesn't mean that the result is wrong. If I say that is must be raining, because it's Thursday, that doesn't mean that the sun is shining instead. Is there a logical reason to wish for a multicultural society?
The culture of individual freedom, both to direct his life and to act on his property, is under a severe attack in western culture, one coming from a philosophical movement which is very western in itself, and which started much earlier than Marx. We can't argue that, by keeping our culture isolated, we would preserve it instead. I wouldn't even wish for a static culture where disagreement is frowned upon, and hierarchy is everything. Still, we can't argue that a society unwilling to pass judgment objectively on facts in the name of respect for other cultures - like having different laws for different people - is going to be capable of stability. What societal bond is going to be there to sustain those in need, since the state has so clearly shown to be incapable of it?
As a matter of fact, while individualism and freedom are not the only feature of western culture - nor do they only appear in it - they are to be found there, and they are a rare development, capable of moving cultures ahead in their technological and economical development at incredible speeds. To consider those cultures who are yet to encounter them - even as a minority movement - and who frown on the concept of them of equal worth to us means to commit a mistake, to accept an objectively false premise.
Does it mean that we should frown on immigration, judging people by their nationality first, collectivizing them into an abstract and thinking of them as elements of a group? Of course not. Immigration shaped the U.S. for more than a century, and it was completely unrestricted- what came out was not a society devoid of judgment.
Does it mean that we can cease thinking about the importance of (part of) european and american culture and philosophy as our defense of reason, and reject the idea of culture altogether in the name of our individuality, hoping to stay free by the power of our minds when force will be used against us?
Preservation of culture is not the answer. You preserve what is dead. But we can set the path to our future culture - and beware of what influences us as we do.