First: How do you reconcile that view with the idea that animals also experience the world as people do with the idea that animals kill and eat other animals? Bears, for instance, are roughly as intelligent as a kindergartener, and yet happily kill and eat any other animals that they can. Pigs and crows are also omnivorous, and will eat any source of meat that they come across. They can all likewise avoid killing if they choose, yet they don't. Are they immoral? Or does morality only apply to humans? (Even animals that we traditionally think of as herbivorous are opportunistic meat eaters.)
Second: What would you propose replacing animal products with, when there are no alternatives that function as well? What about when the alternative products also cause greater environmental harms?
Third: So you would not have a problem with, for instance, hunting and eating invasive species, since those species cause more harm to existing ecosystems than not eradicating them would? What about when those invasive species are also highly intelligent, e.g. feral pigs? Or is it better to let them wreck existing ecosystems so that humans aren't causing harm? To drill down on that further, should humans allow harm to happen by failing to act, or should we cause harm to prevent greater harm?
Fourth: "Exploiting" is such an interesting claim. Vegans are typically opposed to honey, since they view it as an exploitative product. Are you aware that without commercial apiaries, agriculture would collapse? That is, without exploiting honey bees, we are not capable of pollinating crops?
Would you agree, given that all food production for humans causes environmental harm, that the only rational approach to eliminate that harm is the eradication of humanity?
Quick counter: lower kelvin lights are terrible for color reproduction. Pure sunlight is around 5000K, and has a CRI (color rendering index) of 100. Switching to warmer (lower kelvin) lights is going to also alter your CRI, and will change the way that you perceive colors. If you need high color discrimination, that's going to be bad.
For outdoor lights, in most cases that's not a problem.
Usually. In most cases, you aren't going to notice just how much the colors have shifted, because your brain automatically adjusts. Youre perception of color is usually how colors appear relative to other things; you will see a red as red because your brain is comparing it to other objects with a known color. OTOH, if you're taking photos under poor lighting conditions, you'll see a significant shift in color. If you've ever taken film photos under fluorescent lights, you'd see that everything looked sharply green, when you don't perceive them as being green at that moment. (Digital cameras often make color adjustments, and the sensors are often not as sensitive as film can be.)
Going to an extreme, if you use a red filter on a light source, all colors are going to end up looking brown and grey; switching to red lights does the best at minimizing light pollution and loss of night vision, but at the cost of most color information. That's not bad, just a thing to consider.