According to Dictionary.com, individualism is the idea that the individual is endowed rights, liberties, and independent action. Collectivism is similar, but for groups: the collective is given rights, liberties, and independent action.
Group rights illustrate the individualist vs collectivist outlook. Some select minority groups, such as people with different sexual orientation than the majority, certain races, and certain genders, receive special treatment and protections under the law. This unfairness infringes upon the rights of the remaining people because ALL individuals should have the same liberties as long as they do not infringe upon the freedoms of others.Some people should not have the right to force other people to do what they do not want to do just because the group is illegally favored by the government.
Another example of collectivism vs individualism is taxes. Taxes are collected from only half of the population and distributed to everybody else through various welfare programs, including public schools. These schools are an excuse by the government to brainwash kids using tax money, required from people even if they do not have kids or send their children to private schools. These are not merely compulsory schools, they are government run compulsory schools. The teachers are government civil servants and the curriculum is chosen by the government.
It is unfortunate that we have all been forced into these collectivist policies, as every single one of them is stupid and unconstitutional. It is incredibly infuriating that the world keeps moving in this direction.