I strongly ask you to reconsider that sentiment.

Collective mobilization has led to all sorts of social good for all of humanity. Just take for example, the transition to a world based off of the enlightenment principles (egalitarianism, democracy, freedom of speech etc) from of a world based off age-old hierarchical structures and massive concentration of power and capital

Or the civil rights movement in the US, our own freedom struggle etc. All the revolutions such as the French revolution

Now what I was alluding to when it comes to individualism is about how reactionary forces often distract people who seek to strive for societal change by simply attributing institutional problems (that need institutional solutions) to meaningless individualism

This is a common tactic of the American right for instance, wherein most rightists claim that mass incarceration of black people for example can simply attributed to the personal choice opted out of free will by black individual to commit crime or not getting a college degree, without ever seeking to look at the systemic root of these kinds of problems such as income disparity, the relation between IQ and poverty, the decades of public policy effects of policing and the drug war etc

Muslims and Dalits in India are lambasted for living in ghettos and "breed like rats" by attributing it all of the problems surrounding the Indian muslim community to merely their personal individual choice even though much of the problem can be directly attributed to things such as housing discrimination, wherein muslim families are forced to stay in their ghettos *(Family Property is the #1 determining factor for inter-generational wealth), where these ghettos are devoid of public funding for 40-50 years, and their children forced into perpetual bad government schools who then either drop or start petty businesses etc?