Why would anyone think that this is authentic? It's an extremely bizarre letter. And I know that that's the idea: that Oswald was an extremely bizarre person. But, if you know very well that he wasn't, then you should doubt the authenticity of this letter. Let's consider:
Oswald had disappeared into the Soviet Union and was gone for two months. Then, he writes his brother. How would such a letter begin? Wouldn't he start by saying exactly where he was, how he was doing, what his circumstances were, what his life was like, and what Soviet life was like? Wouldn't he talk about how it was there: the daily life; the people; the food; the music; etc.? But no, instead, he starts in as though he is in the middle of a conversation with Robert about why he wants to overthrow the US capitalist system, etc. He just gets right to it without saying anything that is remotely normal. In the context of the circumstances in which the letter was written, it is some wild, weird, and freaky stuff.
But, let's talk about the authenticity. First, not only should we not grant the authenticity of it automatically; we should automatically turn on every alarm in our heads. Why? Because of all the fake, phony evidence in the JFK assassination, that's why. The burden of proof is on THEM, the supporters of JFK officialdom. Until they prove that it's authentic, it remains highly suspicious.
Now, let's consider some facts. We know that the Soviets closely monitored all of Oswald's mail, both incoming and outgoing. They read everything- all his correspondence. Don't you think they would have reacted to this letter? A dumb and foolish person might think that the Soviets would delight in this:
"In the event of war I would kill ANY American who put a uniform on in defence of the American government--any American."
But, the fact is that, regardless of who he was talking about, it is a very bizarre, extreme, and maniacal statement to make, and they would have noticed that and noted it. It would have gone into his file. This was, supposedly, a letter to his brother, who was an American. So, was he telling his own brother that "I'll kill you" if you put on a uniform to defend the US? The Soviet Union had psychologists, and they would have recognized that this was highly abnormal. Worse; it was totally whacked. You don't really want a guy like that running around in your country.
But, was Oswald really that whacked? Was he whacked enough to write that letter? Well, there are extensive interviews of the people who knew Oswald in Russia who described how he was, such as Dr. Ernst Titovets. And none of them, described him this way- like the guy who wrote that letter. It's not even close. None of them said that he was obsessed with Communism and talked about it all the time. None of them said that he bashed the US or talked about taking up arms against the US government. From all that we know from the record and from the people that knew him there, what Oswald's life was like in Russia was that he worked his job at the radio factory, and then he sought to socialize and have fun. He also apparently spent a lot of time chasing girls. He dated quite a few and girls chased quite a few- before Marina came along. According to John Armstrong, he hung around this female dormitory trying to meet girls. So, why in a letter to his brother, would he be all business about Communism when he wasn't doing that there? He wasn't like that there. He wasn't remotely like that there. That whole dark obsessed mindset was completely, totally absent; nobody reported it. He never bashed the US, in fact, he defended the US. Even Marina said that he defended the US- to her relatives.
So, what we have is a situation in which the Soviets never confirmed the authenticity of this letter- even though they were monitoring his mail like a hawk. And since the letter wasn't brought out until after Oswald was dead, he never confirmed the authenticity of it. What do you think he would have said if they showed it to him? He probably would have said the same thing he said when they showed him the phony Backyard photo; that it's fake. We don't have anyone who knew Oswald in Russia who confirmed that he wrote that letter or that he could have written it, based on what they knew of him; his personality; his interests; his state of mind; etc.
Some may try to defend the letter on the basis of the handwriting being his, but stop the nonsense. Don't you think the CIA figured out long ago how to duplicate anyone's handwriting? And when was it ever put to scrutiny by a hostile examiner? That was never part of it.
And by the way, at one point in the letter, he tells Robert that he, Robert, means nothing to him, and neither does his mother. Well, who writes 8 pages to such a person? Wouldn't a letter containing such a statement, by necessity, be short? Who writes 8 pages to someone he doesn't care about? 8 pages? 8 handwritten pages? I'm laughing out loud as I type this because the idea is so ridiculous.
I'll give the link to the letter so that you can read the whole thing- if you want to:
But, the only thing this is evidence of is the fact that Lee Harvey Oswald is the most reviled, the most maligned, the most framed person who ever lived. What they did to him- in life and in death- is truly monstrous. And it shows that the underbelly of this wonderful society of ours, this "City on a Hill" is and truly has been for a very long time: rotten, ugly, and satanic.