Aright Iv heard about the controversy of bhavishya puraan.
I dont think it is wrong to think bhavishya purana as not a puraan because it is mentioned in the list of puraans.
According to the Padma Purana,<SUP class=reference id=cite_ref-23>[24]</SUP> the texts may be classified in accordance with the three gunas or qualities; truth, passion, and ignorance:
Sattva ("truth; purity"): Vishnu Purana, Bhagavata Purana, Naradeya Purana, Garuda Purana, Padma Purana, Varaha Purana
Rajas ("dimness; passion"): Brahmanda Purana, Brahma Vaivarta Purana, Markandeya Purana, Bhavishya Purana, Vamana Purana, Brahma Purana
Tamas ("darkness; ignorance"): Matsya Purana, Kurma purana, Linga Purana, Shiva Purana, Skanda Purana, Agni Purana
So you cannot deny it
as a puraan.
By the way what iss your problem , is it the mohammed part you do not accept that or do you not accept the whole puraan.
Besides these are predictions and
maybe the christ or mohammed parts can be edited or maybe not.
Great acharyas dont consider many puraans such as brahmaand etc atleast never heard of them doing it.
because they dont need to as srimad bhagwatam is the acurate puraan.
Bhavishya puraaan comes as a rajasic puraan so it is not even satwic.
Dont deny things just because you dont believe in them.