Consider the excuses made to avoid involvement with people identified as on the fringe.
The list is not exhaustive, but it includes the following.
1) They are not interested.
2) We are not prepared to handle their baggage.
3) They might steal something.
4) They are just cons.
5) The government helps them.
Notice the emphasis on the pronouns. We construct barriers between us and them, one separated by excuses to justify inactivity.
Yes, there are abuses, which we allow to paint the picture of the whole. Why do we fall into this trap?
The answer is not easy, nor comfortable, but we need to answer it to make change.