Yep. Nearly everyone has a "Crazy Uncle Liberty" in their family. I have multiple. FB is just one of many avenues for the RWNJs to spread their nonsense. 


Nutters like the Birchers used paper, I remember some idiots using fax machines to send nonsense to each other, you'd sometimes see some really nutty stuff in the corners of BBS files, then there was USENET. 


The stupidity really took off when everyone started getting online. I'd have relatives signing up for AOL finally in the mid to late 90s forwarding me stupid conservative conspiracy theory garbage. 


I would often point them to places that debunked the nonsense. It got ignored. After a while I gave up. You just cannot fix stupid. 


And these days they propagate conservative nonsense on FB.