If you ask your average Christian what religion he/she is, that person would say “I am a Christian”. Very few would say, “I’m a Protestant”. A Catholic Christian usually says “I’m Catholic”.
Very few Christians today are preoccupied with the Catholic Church enough to consider their own brand of Christianity a protest against it. Yet, all over these boards they are referred to as Protestants.
I think the term is outdated and should be done away with in everyday use. It’s a barrier not a bridge builder.