They are shit, agreed. It's relying on CGI a whole lot and they're rehashing old titles, Indiana Jones is another.
Although, I do like what Marvel has done with their comic series, X-Men, Avengers, Iron Man (which is a personal shocker at how good it turned out, minus Gwyneth Paltrow).
Otherwise, 80s and 90s were incredible for movies and in my opinion like yours were the the glory days.
I caught part of "The Expendables 3" on the plane the other day. (I didn't even know that there was a 2) and it was fucking awful. I caught about 30 minutes or so as it was a flight to Montreal, but it was contrived and nothing but mass shooting and killing and impossible stunts. (Though I did get a bit of a kick seeing Wesley Snipes getting asked why he was in jail responding, "tax evasion".
But believe it or not, I was thinking about why today's action movies suck ass so badly compared to the action movies of yore and I thought of a few things.
1. The old action movies tended not to be nonstop killing and shooting. Take for example, "Predator" (which I will still watch to this day), or ditto "True Lies" or "Terminator". They had suspense. Expendables had shit. Also, in the case of Terminator and Predator, the killing was not on a massive scale. Predator, it was one by one with the suspense building each time.
2. They had humour in them (True Lies especially, or Terminator)
3. It was not all CGI'd to death.