God I hate comics that never end!

I REALLY like both Marvel and DC but both have existed for so long that nothing makes sense! Why the hell does DC have half resets every two days and why the hell does marvel have a sliding timeline? WHAT EVEN IS A SLIDING TIMELINE! "The Punisher fought in Vietnam. Oh nevermind he actually fought in Afghanistan". Is Magneto even a Holocaust survivor anymore? Does Dr Manhattan have hair now? Why can't they just end or make new characters?