What does this sentence mean?

If escaping always leads to spending more time in the cultural circle of foreigners living abroad, it is not all bad. Sometimes, under certain conditions, foreign culture provides a lifeline for foreigners living abroad so that they will not be overwhelmed by the heavy foreign environment around them. Detailed explanation: 1. Expat= Expat is a foreigner living in a certain country, either temporarily or as an immigrant. The first sentence means that it is not necessarily a bad thing for foreigners living in a certain country to escape and hide in a foreigner's subculture. The second sentence is a small cultural circle established by foreigners in a certain country, which can provide a way of life for this group of foreigners living in a certain country. This way of life can help these foreigners adapt to strange foreign cultures around them and not be overwhelmed by them. 3. For example, if a China person goes to the United States, he is expat. He may not adapt to the exotic atmosphere of the United States, so he integrated into the local Chinese community. This is an example of a foreign subculture.