Isn't it sad - that newcomers can find Church a comfortable place - for the reason that they find people inside the Church to be very similar to themselves?
Yes.
To elaborate:
The people inside the Church try to make newcomers feel comfortable by doing all the stuff a non-Christian would do e.g. play sports, video games, bars, clubs, relax, hang out - and we would say: "Look we are not too different from you. So what is so bad about becoming a Christian?"
Have we really nothing to show non-Christians the real difference between us and them? Except for powerless concepts and non-Christian-debatable ideas? Sure, we can conform to the world as a way to attract many non-Christians to Church. But what change would that make in them? Or us?