There's no such immunity

And that's the whole point of what we conveniently call FUD, and that likely explains as well why these talking heads are still producing noise about Bitcoin being dead "just around the corner" (i.e. to instill what FUD stands for). So even if you honestly think you are immune to this kind of news, you are not in fact as deep down (read, subconsciously) you still care what these people say about Bitcoin (or whatever). It is called fear, uncertainty, doubt for a reason, and it is the outcome of humans being essentially herd animals stuck with herd mentality. It is hard wired and you can't possibly get rid of it (but you can pay attention)