The genuine realist, if he is an unbeliever, will always find strength and ability to disbelieve in the miraculous, and if he is confronted with a miracle as an irrefutable fact he would rather disbelieve his own senses than admit the miraculous also.
One of the names of Buddha is TATHAGATA - one who lives in suchness, one who has become free from all the distractions of the mind. And the miracle is that the mind consists only of distraction, so once you are free of all distractions there is no mind left. In the present there is no mind. In the present there is only consciousness, awareness, watchfulness.
A miracle is an event which creates faith. That is the purpose and nature of miracles. Frauds deceive. An event which creates faith does not deceive: therefore it is not a fraud, but a miracle.
The believers in miracles accept them (rightly or wrongly) because they have evidence for them. The disbelievers in miracles deny them (rightly or wrongly) because they have a doctrine against them.