Your points regarding Vance may well be correct but they are 100% moot. The candidate that will or will not do something about immigration is DJT or KH. We know what both have done to date so focus on the reality of the situation rather than being concerned about Vance.
It isn't even close to the same.It's even simpler. Cover the front of the RDS with tape.
You'll find out immediately how good both your index and your target focus is.
In daylight / low light you are picking all kinds of reference from both eyes as to where your pistol is. In the dark, you're either grooved or you're not. And one eye in a straw isn't gonna do shit other that find that POA.
In fact a standard NS is far easier as the glow is visible to your peripheral vision at all times. The dot, if the angle is wrong at the high 2, that error will grow as you extend. Make sure to include some fun stuff too, like pick the weapon up off a table / the ground. The dot is very much harder to work with in the dark. Reference beyond how the gun feels in your hand is largely gone in the dark.