They can't force the EULA on you, that's why you have to agree to it. (Is the copy of EULA somewhere?) It probably says something like "if you don't like this EULA, remove windows without running it". If it turns out that can not be done... well it turns agreement into blackmail. Antitrust lawyers are probably way to go.

Or perhaps you can argue that EULA is invalid because you were blackmailed into it. That should give you some attention.