I couldn't imagine in a million friggin years spraying oven cleaner on your car! I know, I know, I have never tried it, but you know I am going to now! I'll do a little test on something from the metal bin, but I'd be damn if I would spray it on my street rod.
The eraser wheel won't work, that is a whole different story and it would do NOTHING.
The first thing I would do is try in an inconspicuous place a "solvent rub" test with a rag and lacquer thinner. This is a standard test for 2K products. If it softens the product being it primer, SS paint or clear that you are testing, then it isn't a real "2K" or it wasn't catalyzed properly.
In your case, if the clear is a urethane clear basecoat clear coat paint job that test should do nothing what so ever to the clear. If this is the case and the stripe is regular old "One Shot" as most stripers use, it ISN'T a "2K" and is not "cured" but merely dried. It will come off with the lacquer thinner on a rag.
Sanding it off is dangerous because it is so easy to sand the surrounding clear AS MUCH as the stripe. In other words you sand thru the clear BEFORE you sand the stripe off!!!
This can be done of course by using a block and being careful to ONLY sand the stripe. But the learning curve is pretty painful.

ain:
Also, there is a good chance that when you remove that stripe, you will be able to see where it was! Even though that clear may be a 2K you are asking a lot to run a stripe full of solvent over it without it biting in a little.
I have seen many times where when the stripe is carefully removed you can still see a "ghost" stripe there.
Brian