Of course, there is nothing wrong with having a group of more like-minded people to have as a home base. Well I said nothing wrong, but I think it is actually very good to have such a space. While we have more power in unity, it is important to develop identity and improve positions through comparison to what we are not, or at least through critique, and that is easier to do if you get together with your closest-minded comrades. This begins to define who you are vs. who everyone else is and you can begin to experiment through the improved capacity for unity in action via consensus, whereas you may be pretty limited in action in coalitions or similar spaces.

Left unity is very important, though. It does not need to be complete, but we are much stronger together. Coalition building is essential to achieving anything when the left is as small as it is in most places. To disregard it is to massively limit the scale at which an action can be realized, sometimes the difference between mobilizing hundreds of people vs. 5 and the difference between having full cover for a very legal direct action wink wink and being completely exposed to police surveillance.

I'm sure where you are is both different and similar to the US in various ways. Capitalism is global and the police state with it.