if McDonald's food was contaminated with Morgellons literally millions of people across America and across the globe would have Morgellons. Since that's not the case, we can safely assume it's not contaminated with Morgellons.
those look like fibers from a random person sweater or jacket or shirt or whatever. They don't even look like Morgellons fibers.
Another ridiculous theory by Mike Adams who seems to have gone Off the deep end since all of those crazy nonsensical Boston bombing theories he started spewing