Many times people do not understand what it means to be Lutheran, especially in light of the Reformation, the gulf between Lutheranism and Catholicism and between Lutheranism and Protestantism. Sometimes we look like Roman Catholics, but sound like Protestants. Liturgically Lutherans and Roman Catholics are similar in format and style. One can easily move liturgically between them. The gulf in many ways is greater between Lutherans and Protestants.
The following quote from Hermann Sasse shows how he regards the situation in 1938. I think the last two sentences are excellent.
This explains why the differences and contradictions within Protestantism means so little in the eyes of the Reformed Churches. From their point of view, all the churches which arose out of the Reformation were essentially one in their opposition to this false church of the Middle Ages. The more recent concept of “Catholicism” as an antonym of “Protestantism” is a typical product of Reformed thought. The Lutheran Church has not the slightest theological interest in this antithesis between Catholicism and Protestantism. It does not know to which side it belongs. If only there were a clear-cut contradiction between true and false doctrine in the antithesis! But this does not happen to be the case. For there are heresies in Protestantism which are just as dangerous as those of Catholicism. Lutheran theology differs from Reformed theology in that it lays great emphasis on the fact that the evangelical [Lutheran] church is none other than the medieval Catholic Church purged of certain heresies and abuses. The Lutheran theologian acknowledges that he belongs to the same visible church to which Thomas Aquinas and Bernard of Clairvaux, Augustine and Tertullian, Athanasius and Irenaeus once belonged. The orthodox evangelical [Lutheran] church is the legitimate continuation of the medieval Catholic Church, not the church of the Council of Trent and the Vatican Council which renounced evangelical truth when it rejected the Reformation. (Hermann Sasse, Here We Stand, Augsburg Publishing House, 1938 orig., p. 102)