We brought pigs into existence for the benefit of human conditions, we will take them out of it if and when it becomes necessary.

So called ethical treatment impacts the speed and scope of research that can be done, and in doing so delays or prevents the benefits of conducting that research. That means that people who could be saved by animal tested medicines instead die in the time taken to find an alternative.

What's gross is condemning people to die for the sake of some pigs

I would see a million pigs die before one human.

Hydro destroys environments, uses enormous amounts of concrete and the related disasters have killed orders of magnitude more people than nuclear.

Iraq and Afghanistan had their militaries levelled in a matter of days. It's the occupation that created problems

It's neither of those things. Words have meanings, and legal terms have very specific meanings.

Climate change is not going to be literally the end of the world, or even human civilization. At the worst we'll see mass immigration to the global north and the centre equatorial band become more difficult to inhabit.
Farm yields will probably drop to some extent, and we might see a few wars, but we are fairly well equipped to survive.

Better mod tools and more quickly

In the west there are laws about public indecency which legislate what people may wear outside and these rules demand women wear shirts but do not demand the same of men.

In some western countries, there are ones that do not make a distinction

The law covers that also. All visible religious garments are forbidden.

"The law in it's great magnanimity prohibits poor and rich alike from sleeping under bridges and stealing bread.".

A law can be applied equally to everyone and still target a specific group of people.