One thing I do find about talking to Opus Dei members is that most think that the flood of Mexican/Central American immigrants are "good" for America, even if they at the same time condemn the Islamist invasion of Europe. I should point, out, however, that these are the personal opinions of the members I've known over the years, NOT official DOGMA.
You were invited if you lived in the house. Not everyone can join. People got to know you first (and then how could they resist? : )
The door should be open if it is a Christian thing. No tickets to Saint Patrick’s (well, except for special events).