Why are there warranties at all?

My microwave had a one year warranty, it's probably not gonna get fucked up the first year of having it.. but I'm gonna have this damn thing for like a decade or more so why would I only want the first year covered.. asshole?! You could also say well what company wants to have a 10 year warranty of course it's going to be dog shitted ass destroyed in 10 years you'd basically get new free microwave in a few years-no company wants to be responsible for that and to that I say well yes I wouldn't want to be responsible for your busted ass microwave that you exploded metallic Mac n cheese in several years ago but also idk like I think 3 years is too little but 5 is too much give me a 4 year warranty I think they should do that like what if the paint in my microwave is chipping and everytimei clean it more paint falls off and there's rusty metal of sorts in there. What if hypothetically that shit is getting cooked in my food yhear cuz it's in the air Makin that rust shit get cooked. 9-10 minutes of heating up a grocery store rotisserie chicken getting that rust baked in yea you don't want that so.. give me a 4 year warranty that I'm not even gonna do anything with. 1 year? You are motherfuxler