Very likely he hopes to have a podium from which to espouse his racist beliefs.
And expect the judge to shut that crap down.
Depends on the judge. My formee boss defwnded against a civil case brought by a guy who represented himself. The litigant's case largely consisted of him droning on and on about all sorts of things, mostly unrelated to his claim, and the repeated filing of voluminous motions, most of which were denied. Tye case should have been over in 3 to 5 days. It dragged on for months. The boss complained, but the judge was willing to grant the plaintiff plenty of latitude, no doubt to stave off any future complaint that he was unfair to the plaintiff.
All I know is when the case was finally over, my boss packed up his family and went on a 3 week vacation. He deserved it.