With respect, you're saying a lot of exaggerated, contradictory, and simply untrue things.
While "all" is hyperbolic, it's true that healers carry more of the weight in 8-person content. But also: that's fine. It's healthy for the game to have jobs that have more responsibility and jobs that have less responsibility; different strokes for different folks. But make no mistake: all jobs have responsibility. More on that shortly.
They're dying and failing? If DPS are not succeeding, then by definition DPS is not too easy.
Why are you blaming people for anything in normal content? That's counterproductive. If things go wrong, just get up and try again. And if someone else is doing the blaming, report them for violating the ToS. Just play the game and have fun, even when you're wiping. Then celebrate when you win as a team.
This is simply not true; plenty of normal raids have DPS checks. Coils, Alexander, Omega, Eden, Panda, and Arcadion all have DPS checks at certain points. They just tend to be pretty easy to clear, which is likely why you haven't even registered them. And that's by design, because if they were actually difficult, you'd rarely get matched with a group capable of clearing them. And then instead of complaining about the division of responsibility, you'd be complaining about being unable to clear without a pre-made.
Everyone is already part of the victory. If you don't already understand that, there's an easy way to learn firsthand: queue with a pre-made party for the new raids, have all 4 of your DPS immediately kill themselves, never raise them, and then continue fighting until you achieve victory. You'll notice a meaningful difference in the experience you have, and that difference is because you're lacking what the DPS are contributing to the victory.
In short, everything's fine the way things are, and if you got what you're asking for (enrages) then you would have an even worse time because the average normal raid would never be victorious; the DPS simply wouldn't be good enough. Which is why the devs reserve enrages for Extreme, Savage, and Ultimate content. Thankfully, if you like that kind of thing, you can do the content that already has it.