I have heard people say this to me and mostly I think they are wrong. They do know pagans they just don’t know they are pagan because you know we don’t all walk around in flowing robes all the time.
maybe you only talk to people of your faith (in which case you’re not reading this) but if you talk to other people I am pretty sure you know a pagan. So while the pagan community struggles with how we can go about coming out of the broom closet to be a fully respected religion maybe you can go about thinking why a pagan might not feel comfortable telling you they are in fact pagan? Figure it out and change it.
Be the kind of person that is loving and open an accepting. Be the type of person that ask questions instead of makes accusations. Be a true friend. Treat others the way you want to be treated and maybe you will find out you know a pagan or two.