Are tornadoes attracted to mobile homes?

No the path of a tornado is governed by the path of the storm from which it is formed, not structures on the ground. Mobile homes are weaker and therefore more easily destroyed than frame homes. A tornado that hits a trailer park is more likely to cause major damage then it would in a subdivision of frame homes and therefore more likely to make news headlines. However, there are locations (tornado alleys) where tornadoes are known to hit repeatedly.