As an immigrant, we should fully absorb the culture of that country? Why (why)?

Only by absorbing the culture of immigrant countries can we understand the values and habits of local people. Only by understanding their values and habits can we communicate and get along with them more effectively, and it is also conducive to integrating into the local society. If you can integrate into the local society, you can live and find a job more easily. Moreover, if you know the local culture, you can also have a topic when communicating with local people. Therefore, it is very important to understand the culture of immigrant countries.