Originally Posted by
rdtindsm
There are tools that will straighten that kind of bend. Basically a two long pipes. One goes through the top tube; the other is a spreader that braces against the bottom bracket.
Not enough of an expert to comment on the absolute wisdom of your bend, but the tubes have collapsed and I am skeptical about both the possibility and wisdom of a repair.
Once the tubes are collapsed like that there is no sense in straightening. Unwise to do, and no shop that would have that tool would agree to use it on that frame. Throw away the bike and look for something else.