It isn't really even about "wanting to drag our great nation down", it is much more generally about bad things being more newsworthy than good things.
But it does have an effect on the mental health of the nation, it's like being told you are useless every day, eventually it'll start to make you question if you really are, I know that's extreme, but I've completely disengaged with the news wherever I can because there's no point in listening to it. Everybody lies, nobody gives a straight answer, they're all in it for what they can get out of it, or that's just the way it seems to me.
But I'm with
@jowwy on this, my combined energy is about <£3 a day, of which 1/3 is standing charge.