What is the CSR Ranking for?

I have now 28 Games this season on SWAT and since being ranked, I had like 4 other ranked players in total. Yet enemies are always ranked.
Why? Why do I get ranked and put in a league if I end up playing with unranked players anyway? I don’t see a point in that.

I hope you’re joking, because they need to be ranked in somehow… It doesn’t make sense to just play everyone who is unranked against one another, as they don’t have a solidified ranking yet. This makes it easier to group people together.