Lutherans disagree with those that make predestination the source of salvation rather than Christ’s suffering, death, and resurrection. Unlike Calvinists, Lutherans do not believe in a predestination to damnation.[4] Instead, Lutherans teach eternal damnation is a result of the unbeliever’s sins, rejection of the forgiveness of sins, and unbelief.
I've never heard predestination as the source of salvation, nor seen it posted here so that is a strawman argument unless you know a denom that teaches that. But thanks for telling me what Lutherans believe. I can imagine the cacophony arising from a Lutheran or some flavor of Protestant telling catholics what they believe. You are 1 for 3 here. Unbelief is the cause of damnation, unbelief in sin and the Redeemer. Confessional Lutherans reject predestination to damnation. Lib lutherans reject Christianity.