Fear of the Unknown

In Torah, in parsha Shemot (Exodus 6), we read how a new king arose in Egypt, a king who did not know Joseph. This was not great for Jacob's family. His fear of the Unknown (in his case, foreigners living in his land) led to panic, and panic led to action, but in the end, his solution did not work How should we deal with the Fear of the Unknown?
Listen?