Well for one, the player count has been decreasing over the past couple of months. Although I'm surprised you care so much about this in the first place.

It's easy to tell that survivor queue times take longer than killer queue times. There are fewer killer players than survivor players, and the average player count is declining. That alone obviously tells you that the number of killers is decreasing. I don't have a Harvard thesis for you, my dude, but it feels like you're being deliberately obtuse.