How do you study a PhD without a supervisor and other PhDs?
Speaking generally, this does not seem like a workable situation for you. Your PhD supervisor seems to neither match your topic nor your personality, and it seems unlikely that they will support you through to the end of your PhD. Even if you did manage to produce a passable PhD without your supervisor's support, they don't seem to be someone who would be going out of their way to help you network into a position or write recommendations for post docs, etc. This does not sound like where you should be.

Step one would be to tell the administrative/departmental powers that be that you are considering leaving your programme. Don't make it personal, say that you do not believe that there is a research topic and research culture fit between you and your supervisor. They may be willing to discuss new supervision for you at that point (my UK Uni would, losing students messes up our stats). 

Meanwhile, where SHOULD you be? Whose research out there influences your own? It might be worth getting in touch with scholars who more match your profile. In some circumstances, Unis can secure external supervision for a PhD student by, well, just paying that person to do it. This is far from a guarantee, but we secured an external supervisor for one of my PhDs (edit, I mean one of my PhD students, I'm the supervisor) during my year of parental leave because we felt no one else had the specialty she needed.

Caveat, I'm in SocSci/Humanities so this might not fly in your discipline, but it really is rare to get through a PhD with no support and much antagonism.