I dabbled in it, I have a redcurrant interest in it, I’ve always enjoyed doing so. I was a kid during the time of the Six Day War as well. I have never heard anything huge come across shortwave, but even the ordinary can be fun.
During the 90s, I used to listen to some kind of fun, spooky conspiracy theory broadcasts. Good fun.
Yes; while international broadcasting by governments still exist, most shortwave now is either religious programming or really nutty stuff. I can remember picking up broadcasts from the neo-Nazi William Pierce (author of The Turner Diaries) some ten or twenty years ago (he's dead now, thank G-d).
As I said in the OP, the first thing I picked up on my new radio was some sort of preacher (with what I assumed was a thick African accent) claiming that the Jesuits run the CIA. And of course, Alex Jones is a shortwave radio. I don't know his personal opinions, but I've never heard any anti-Semitism in his broadcasts (granted I've never seen his site). He seems more like someone in the orbit of the Birch Society--which is quite bad enough.
Unlike in the old days when you had respectable stations like HCJB, WYFR, Adventist World Radio, etc., now there are stations that will allow practically anyone to use them, and some of the broadcasts are a tad unconventional. Many years ago I caught an (apparently) Black preacher who seemed to think his church was the only true one in the world. I recall him screaming many times "Ain't NO way right but this!!!"
Most people--especially these days--laugh at such people for their "ignorance." Ignorant they may (or may not) be, but one thing they had that we have lost was a wonderful sense of clarity. We today, beginning with the Lockean reaction to the religious wars of the seventeenth century, are so terrified of religious conflict that even the most "conservative" and "orthodox" people now proclaim that two diametrically opposed positions are both saying the same thing. There isn't even any danger of actual warfare, but that's how terrified we've become of any kind of religious conflict.
It is the simple people of the world, not the "intellectuals," who still have clarity on these matters.