Is the fourth generation of Naruto Namikaze Minato dead?

I have seen a convincing statement about the life and death of four generations. At that time, four generations stood on the Wen Tai and sealed Kyubi no Youko. These four generations are all dead, and Wen Tai should be very clear. When Naruto practiced psychic summoning Mrs. Wen, Mrs. Wen cursed Jiraiya directly as soon as she came out, not mentioning four generations living under one roof. Assuming that IV is still alive, Mrs. Wen should ask who summoned me, not just scold me. From this point of view, IV is indeed dead, not the leader of Xiao as some people think.