Michelin sidewall cracking . Need advice

I have had to replace three sets of Michelin tires on one of my previous vehicles. The vehicle sat in the yard most of the time in Virginia and within two years the sidewalls were shot. I worked with my tire vender to have the tires pro-rated for warrenty replacement and did that process three times. Once I sold the vehicle, I vowed that I would never go that tire route again. I do think Michelin has a problem.