Lane-Splitting Rider Gets Knocked Down by Audi Moron [Video]
In other words, letting go is the wiser choice, for the sake of one's health and bike, and watching this video should prove I'm right. Forget about the Audi moron and his stupid, most likely intentional action: it's about keeping safe.
Being stubborn in such scenarios is probably the worst choice, as a rider will always come off worse than any driver. If you ride filtering the traffic and run into an idiot like this one, mind your own business and try to avoid him: find a safer overtaking occasion or just accept your fate.
There's nothing in the world to force him make way for you, and if you're also unlucky, it's pain time and mauled bikes for you, instead of making it to your destination 30 seconds quicker.