Jeconiah illegitimate?

Luke 1:32—”This passage indicates Jesus was David’s royal heir, but Jesus’ forefather Jeconiah (Matthew 1:11) was banished from the royal line as the last king (Jeremiah 36:30), so the line is not legitimate.”

Jesus’ biological ancestry was not through Joseph’s line but through his mother Mary (the Luke genealogy), which is also through David but apart from Jeconiah. The angel Gabriel’s announcement reinforces this legitimacy: “And the Lord God will give to him the throne of his father David.”