Front wheel struts

I rotated the tires and saw uneven tire wear on the front tires. Inside half almost bald and middle out fair. Rear tires were worn evenly. The left front plastic wheel cover was scraped and the wife said she remembered scraping a curve. Was not real seriously scraped. I got appointment with the local tire shop for an alignment before putting on new tires. They said the struts were loose and they thought the howling noise was the bad wear and the wheel bearings were probably bad. They wouldn't do an alignment and suggested taking it for warranty replacement of the struts. While up on the hoist I jiggled the struts about a 1/2" back and forth. The dealership I bought it from said there is nothing wrong and when put up on the lift the struts are suppose to move and the oil leakage was road gunk. They found nothing wrong with the wheel bearings. They said lack of tire rotation caused the wear problem as well as other unknown factors. The vibration can be felt in the steering while driving but the howling noise starts at 32MPH to 40MPH bad and is almost unbearable to drive it's so noisy. I can't believe the noise is just the badly worn tires. The noise is a dull moaning sound not so much a high pitched sound. Called Chevy and they set me another appointment with a different dealership.