This feels like debating a holocaust denier. We are moving from “it did not happen at all” to “maybe it wasn’t six million Jews but only five million”. (“You did not name a single historian, Greek city state, solitary event, or personality from history” → “ancients simply did not keep accurate records … what evidence we do have shows the numbers to be always exaggerated”)
The argument by inaccurate records goes both ways. If there is a genocide today, we probably know about it, and someone at least makes a note in Wikipedia. In the past, ethnic groups could be erased with no one (other than the people involved in the war) noticing. The fact that the list of known genocides in 20th century is longer than the list of known genocides in e.g. 12th century is mostly because of better bookkeeping.
And yet, despite choosing a century randomly (if I tried on purpose, I could have chosen e.g. the 13th century with Albigenian Crusade as a good example), Wikipedia mentions “Massacre of the Latins” with about 60 000 dead in the 12th century. In a world where the population was not even 1⁄10 of what it is today, so relatively comparable with the numbers that you have mentioned. And we have no idea about what massacres might have happened in 12th century Africa.
So yes, today we have more victims in absolute numbers, but that’s because we have larger populations and stronger weapons. When you have to kill your enemies using a hand axe, I guess you get quite tired after chopping off dozen heads. With a nuke, you just press a button and thousands die. And yet, despite the other side having nukes, most Japanese survived WW2. (Which is something they totally did not expect, given their usual behavior towards defeated enemies.) The people in the past were as efficient at killing their enemies with swords, as we are with the weapons of mass destruction today.
“Now go, attack the Amalekites and totally destroy all that belongs to them. Do not spare them; put to death men and women, children and infants, cattle and sheep, camels and donkeys.” (1 Samuel 15:3) Tell me again how civilians were not considered valid targets in the past.
You mention compelling prisoners of war to labor, as an analogy to slavery. Yeah, but that was an exception during the war. (Except for the Soviets, who conveniently kept many of the prisoners of war long after the war was over.) Now compare to a situation thousand years ago, when the slave trade was a crucial part of European economy, comparable to oil trade today. The reason entire countries converted to Christianity was to stop the unending slave raids from their neighbors. (Christians had a taboo against enslaving each other. So did Muslims. Both of them considered it okay to enslave each other, and the pagans.) Or consider Africa: the first black slaves brought to America were legally bought in Africa from the local African slave traders. Americans did not invent slavery; they just provided a huge new market for it.
Sorry, I think it is you who needs to learn history. Yes, humans suck today; the “Noble Savages” were not any better, probably much worse.
It happens right in front of my house. Addicts steal things at shops, sell them at a pawn shop, buy drugs from a dealer waiting right in front of the pawn shop (difficult not to notice: the only guy who wears a black hoodie in the middle of a hot day), then inject the drugs behind the pawn shop.
When the shops are closed, or the addicts draw too much attention from the security, they try breaking into our houses and cellars instead. Every door in the neighborhood has signs of an attempt to pry it open.
What can we do about this?
Make shop theft impossible? Unlikely to happen, they would need to have the security literally everywhere.
Prevent the pawn shop from buying stolen stuff? I don’t understand the details, but I was told that if they make the seller sign a paper saying “I totally swear I didn’t steal this”, they are legally ok. The pawn shop owner definitely knows that he deals with stolen stuff; that’s why he moves everything between the shops, so that when they rob your house, you won’t find your stuff in the shop window on your street the next day.
Prevent the dealer from selling drugs? That’s quite tricky, legally, because owning a small amount of drug “for your own use” is not illegal here. Of course the dealer only brings one small bag of powder each time. Also, you pay to one guy, and get the powder from another guy, so it is legally tricky to determine at which moment exactly the drug was sold. (The first guy didn’t give you any drug, and the second guy didn’t take any money from you. If you only catch one of them, he will probably claim it was just a misunderstanding.)
So our only remaining option is to form a vigilante squad, and… well, I am not going to write down anything that may or may not happen afterwards. Didn’t expect this to happen to me, and yet, here I am.
Reducing penalties for drug use is a well-sounding idiocy. In theory, you reduce the penalties for drug use, but in practice, you reduce the penalties for drug distribution, because most of the time when you catch a dealer, he can argue that this was all for his own use. And he only takes with him one bag of powder at a time. Yes, in theory it is possible to find the store full of bags, but you just made it needlessly complicated. When drug possession is a crime, you can catch the dealer, he says it was for his own use, you arrest him anyway. (Ideally, you would give him exponentially increasing sentences, starting with community service.)