Your employer has an obligation to engage in a cooperative process with you to establish workplace accommodations.
You may also have a retaliation claim. Although you have already filed an EEOC claim, you'd need to file a new claim (or a claim with the Wisconsin Equal Rights Division) in order to address the retaliatory termination.
It sounds like you're also entitled to your unemployment insurance, provided the employer cannot establish that you engaged in misconduct. You're also entitled to have an attorney present at the unemployment hearing.
You have the opposite situation of most since you didn't want accommodations that they were trying to provide; nearly all claimants are denied accommodations they want. If they fired you *after* the EEOC claim, you may have a decent retaliation claim.
Continue through the EEOC process. Start calling employment attorneys in the Appleton area.
Clark County, Nevada practitioner.