Well, let's say that hypothetically we buffed railguns to the point where a railgun loadout on most ships could one-shot the shields of an equivalently sized ship and the second volley would likely one-shot the powerplant. As a consequence of this, a sufficiently large ship hitting a smaller ship would likely punch clean through the shields and kill them in one volley.
By your logic, there is nothing wrong with these new one-hit-kill railguns. Their ridiculously high power just means that everyone should go equip them right now. Opponent has more railguns than you? Get a bigger ship, now you have more railguns. Don't blame the game if you're not running railguns, you made a poor decision to not equip them.
To continue the railgun analogy, what, you think they do too much damage? You clearly just hate railguns and want to force people to use lasers. If we're going to nerf railguns we should nerf pulse lasers too, they also do damage and they're much easier to aim.
Like I've said earlier, nobody is looking to remove shield enhancing modules per se. It's just that SCBs are so ridiculously powerful that they overshadow all your other options. Saying "I like them because they're OP and I like being OP" doesn't do much to help your case.
Also chaff and heatsink launchers are both pretty easy to counter if you get up in your opponent's face.
I guess one upside to these threads, at least I'm raking in tons of rep.