Now that you have disclosed where you worked- must have been a...

Now that you have disclosed where you worked- must have been a hard gig- it explains why they had so many problems!
You assume far too much,and make far too many basic logic mistakes,but at least you are starting to debate rather than just expect us to accept something because you say it and repeat it time and again and obvious anger when anyone disagrees.

You have mentioned some important problems.Each mine has it's own problems as the god of mining decided to place their food in difficult environments, and yet man seems to be able mitigate these.MEI will have its own set of problems as will BCM.

"Explain to everyone how...." This is a typical "straw man" argument that is part of your faulty logic.There are of course other options such as tanks that could be considered for example- not saying that they would would work, but as an example [ you say you can't dumb it down enough.You seem to have no grasp of basic logic as all your arguments are based on your limited past experience- when you realize this the lights might start to come on- but no doubt this will just inflame your underlying anger at anyone who dares to challenge your opinion]

Below are summaries from multiple sources that show your opinions are just WRONG.

Here is a summary of heapleaching in high rainfall areas from chat GP
"In summary, while heap leaching can be challenging in high rainfall areas, proper engineering, modeling, and solution management can mitigate these challenges and make it a viable mineral extraction method."

and on tailings dams

"In summary, tailings dams in high rainfall areas require careful design, monitoring, and risk assessment to prevent disasters like the Brumadinho tragedy."