First off the show is 100% unrealistic.
The problem is, none of the shyt you're complaining about is.
"Cartels don't work like that?". Huh? Cartels have thousands of members....at most, we've seen 20ish killed. There is still a ton of people out there.
And the cartels never had "a billion dollar meth operation". The only reason they got into meth was because of Gus....who hired Gale....and he said they should hire Walt, whose product was better. That wasn't his first batch....it wasn't even the first season.
Cooking meth takes zero "street knowledge". It's literally 100% chemistry. The show is 100% accurate in that respect, and actually uses DEA chemists to fact-check all of that. All the scenes you see them making meth in the super lab, are 100% factually correct for 99% pure....they actually air the process out of order so real life drug dealers don't get any ideas. You can Google any of the shyt I just said if you don't believe me.
at acting like it's a fluke that Walt's shyt is better than anyone elses. He's a brilliant chemist, that's literally all it would take to make the product he does.
The rest of your complaints are kinda dumb because if he died in the first season there is no show. And if you're gonna complain about the explosion in Tuco's crib, go all the way with it. Mercury Fulminate is actually far more unstable than they showed, and he wouldn't have been able to carry it in his car, or handle it without it exploding, most likely at all.
But if we're gonna go this route and nit-pick what's real, you might as well stop watching TV.
Fred.