I'm tempted in joining up with the ''manosphere."
Do you have reasons for wanting to join this particular group?
They say a lot of stuff I've been thinking. They make a lot of sense
While it's understandable to be upset if you have had poor prior experiences with a gender, it isn't appropriate to join an ideological movement that seeks to put down that gender. This includes movements that seek to favor men over women as well as movements that seek to favor women or men. If you are feeling sympathetic towards the manosphere, you should realize that women are not a monolith and it's wrong to generalize an entire gender as having one single mindset and behavior.
I know, I'm just not sure about it.
It's good that you are still deciding about this. They may be thinking the same things you are, but it doesn't necessarily mean they are right. Also you could always change your mind later on.