Since synthetic fuels are zero emissions, why would they ever need to be replaced by EVs? A better question is why we need to bother with electrification at all if there are alternative paths to zero emissions?
Particulate emissions can come from the tires. EVs aren't magic on this form of pollution. Plus, you can have particulate filters on the engine exhaust, reducing this greatly.
I wouldn't be surprised if ICE's powered by biofuel/synthetic fuel could be competitive with electic veichles given enough time to improve the technology. Most likely we are going to see some of that development as EV's simply cannot fill all the niches yet.
