Good explanation about trailer tires vs LT

Why is it that ST tires are so temperamental? You gotta treat them a certain way, care for them a certain way, blah, blah blah. They are what they are - cheaply made junk tires that aren't worth buying. There's a reason the ST tires are stamped with "Not for passenger car use", or words to that effect, because they are not safe. I'll stick with my Michelin XPS Rib commercial truck tires on my 5th wheels. Been using Michelin LT's for the past 9 years and have yet to have a tire issue. And I don't have to baby them, they're made for trucks, after all.