All of your examples are news by the quotes definition. Plenty of people don't want any of that printed. Much of it comes down to fights over zero-sum pies.
Successful launch of a shuttle? We're wasting money on space and the media is shilling for the industrial/military complex, as usual.
Breakthrough in physics? That discovery is just careerist researchers making shit up to get more grants.
Election results? The result is a complete fraud that steals my victory away from me and printing this only proves media's bias in favor of my opponent.
I think we've reduced the headline to something that is not useful. For instance, I don't want advertising to be printed. So, I guess advertising is news?
First, I just discovered Androids keyboards weird symbols mode. ¥°¢{×`÷|π|√∆}£][™®. Nice.
Second, I feel like you're making the mistake of saying if you object to anything then the thing you object to is news. The original statement is pretty short, but I take it to mean that you object to the content of the item and not the genesis of the item or the motive of the author itself. Of course, this distinction leads to all kinds of uncomfortable situations. For example, you might be against propaganda itself, but you might be very much for the position espoused by certain propaganda. I think the narrower content oriented aspect of being against something is what we're talking about. Because otherwise it gets a bit silly. You could argue that the westboro Church thinks that gay people are news, for example.
The point of my comment is to object to your characterization of things like a breakthrough in physics as "news" because there are people somewhere who find it objectionable for some reason. It is a semantically valid interpretation of the post title but incongruent with its spirit.
I had a different reading of those examples. Most of the headlines sound like press releases, the sort of thing people want to see published and can be regarded as a form of advertising for the research groups or organizations involved.
Successful launch of a shuttle? We're wasting money on space and the media is shilling for the industrial/military complex, as usual.
Breakthrough in physics? That discovery is just careerist researchers making shit up to get more grants.
Election results? The result is a complete fraud that steals my victory away from me and printing this only proves media's bias in favor of my opponent.