It is laughable that anyone would say LEDs are less effective than halogen. Make your arguments against them in other regards because properly designed LEDs providing better vision at night than halogens is a ship that has already sailed. If they didn't then so many people wouldn't use them to include auto manufacturers.
Nobody stated they were less effective than halogen, but it really depends on what
effect you are trying to achieve. Your effect seems to be supporting driving faster and blinding people to get there.
LED bulbs only provide better vision because the wattage of halogens was limited, deliberately, to... get ready for it... not blind fellow motorists. You want to argue the LED are better, for the exact reason the halogen aren't as bright, because it blinds people. The fact is, if it weren't for the housing being made of plastic, a small form factor bulb that's halogen can be much brighter because the bulb itself isn't so susceptible to overheating problems.
Yes, many people use the LED headlights to the point where it's becoming ridiculous to drive around them, and glaring enough that NHTSA finally allows for adaptive headlights, but we'll have to wait and see how effectively that's implemented in new model years. and you don't have adaptive headlights.
It is disrespectful to fellow motorists, when you can't see well enough to drive with legal, stock headlights, to swap in lights that make it harder for everyone else to see instead. Trying to throw in the auto manufacturers, is not the same. You want to believe your headlights are equally good but they are not, because they're in incandescent housings. You have not done the testing needed to know whether you are complying with DOT standards, merely implying it must magically be so. You want to insist the emission pattern of the LED is the same but this is impossible. Plenty of scientific sources back this up. It's not enough to just find a seller, biased in how they pimp their product, making misleading claims that they're not accountable for.
Let's consider an extreme version of your argument. If obeying the law is already out the window, why not just use massive arrays of light bars, strapped on everywhere you can fit them? I suspect you wouldn't do it only because then you'd get caught, but it aligns with your argument that it would be more effective for the driver's own night vision than just a couple of headlights.
This is why the laws exist, so people don't make the mistake of thinking it's as simple as more is better without having the testing to know what they really end up with. It's oversimplified to just state LEDs are better therefore it justifies doing whatever you want to with them. Same thing applies to halogen bulbs, that you shouldn't cut out the back of the housing, mount a ceramic socket to handle the heat, then run 200W halogen bulbs that
also aren't the right geometry to work with the stock incan housing... except that with precise measurements to make the right spacer-adapter (and cooling fans to keep the housing from burning up), you could position a 200W halogen filament at the correct focal point for an incan housing, unlike any of the retrofit LED drop in bulbs. It would be superior light quality and beam pattern, but still illegal and still blinding other motorists.
Heh, here's an argument for you: Which is better for generating income? Working or robbing banks. Bank robbers would tell you that robbing banks is more effective (till something goes wrong), and they rationalize it being acceptable to do in their subjective situation, banks are insured so other people shouldn't mind the inconvenience, despite the fact that it isn't going to work well for society if everyone does it. It could be that there are reasons why it's illegal to rob banks, but let's just argue those away and do it anyway (because other people do it), as long as you won't get caught!
