I've always wondered if Junk DNA is 'structural', i.e. its there just to hold the coding regions in the right spot for when the DNA is unwound and the proteins

I've always wondered if Junk DNA is 'structural', i.e. its there just to hold the coding regions in the right spot for when the DNA is unwound and the proteins are expressed. So if the junk DNA was deleted then things would go horribly wrong because the wrong bits of code would be exposed.