YY-
I have always lived in the USA. Until your initial post I had never heard of this Alex Jones, and I keep pretty well up on politics. So there is no special reason for you in the UK to have necessarily heard of him.
Perhaps because you are an expat you may be overly sensitive to him, as you yourself note. HE neither makes me embarrassed no ashamed to be an American; nor does he makes me proud. Having looked into him a bit, now, I just think another day in loony land.
Someone, above, brought the Bilderburgers into this conversation, a super secret cabal. About 25 years ago there was late night local radio host (name escapes me he was on so short a time) always going after secret conspiracies regarding the B'burgers and the Tri-Lateral Commission. The latter group was sooo secret that the procedings of the TLC could be found in the Glendale, Cal. public library.