Sometimes people live in different conditions or different places than you. I know this must be confusing for you, but its true.
It sounds like you live somewhere like antarctica, or perhaps the sahara desert, where there are no near-by cities or towns at all. In that case it would indeed be a better idea to start your own group without checking, I agree. In many other places if you look around you will find other leftists already organising near you, even if its just small groups.
But seriously, OBVIOUSLY the first thing you do when you start being interested in organising is looking for local groups. And then by looking you might find out there are no local groups, or that they used to exist but are no longer active. This might mean you can contact people from previously active groups, or that you need to start your own new one, but then you actually know, and can connect to local historical struggles possibly. Often you dont have to invent the wheel of left-wing organisation all by yourself.
I'm not saying you should expect to find antifascists or communists or anarchists in the closest small town to you, but for most people there will be SOME kind of organisation in the closest medium-sized town to you, either now or historically.
What an incredibly weirdly passive-aggressive message.