Believe what you want, but the FATHER does not come and kill the Beast.
The Ancient of Days does come and kills the Beast.
the Second Coming of Christ does come and kills the Beast!
But Daniel has the Son of man coming to the ancient of days. Obviously one is Christ and other is his Father.
Daniel does not say who killed the beast, only that the beast was killed.
Dan 7:11 I beheld then because of the voice of the great words which the horn spake: I beheld even till
the beast was slain, and his body destroyed,
and given to the burning flame.
Another issue here is this beast is killed before he is given to flame while the two beasts in Revelation 19 go into the fire alive.
Rev 19:20 And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image.
These both were cast alive into a lake of fire burning with brimstone.
Daniel and Revelation are not the same books and same events. Similar imagery is used but the details are often opposite.