Dude, if your headlights aren't enough to illuminate what's in front of you, then it's not that an upgrade would be too much, it's that an upgrade would get you to the bare minimum... You literally NEED to be able to see what else is on the road with you at ALL TIMES. You're complaining about the risk that a vaguely arrow-shaped blinker causes in the specific case where you literally can't see the car it's attached to. There's a much bigger risk there, and while it's not your fault, it's definitely something your vehicle needs to have the tools to deal with.
There have been times where I was driving near someone who forgot to turn their headlights on at night. But that's the thing - I knew they were there; I could see their car with the light from my headlights, and even in that dangerously-low vision, I could easy tell which side of their car a blinker came on from. Yes, I got off the road and waited a bit to make sure they weren't near me anymore, but even in the time that I had to drive with them, I had the tools to resolve the situation safely for me.