This should be a draw

Nevermind...

I somehow thought that the king is on a black square, and the bishop can only go to a white square, so a checkmate is not possible, but then I realized that the king can move on a white square. :P
lichess.org/editor/8/8/8/8/8/5B2/7b/5K1k_b_-_-
So it's not a draw, it's a victory for white. :DDD
P. S. Also I don't advocate that this should be a draw. I support the rule that it should be a win, if it's possible to checkmate by any legal sequence of moves.

Of course it is an automatic draw: 7 move later (on move 102)

Hint: the probability for reaching a 3-fold repetition is higher if the "defender" restricts himself to two moves (say always the same two K or two bishop moves ad infinitum resp. 50 moves)

Help mate.