You are confusing traditional hybrids with true plug-in electric hybrids. The entire drivetrain is electric, but there is the ICE generator only has to be a fe

You are confusing traditional hybrids with true plug-in electric hybrids. The entire drivetrain is electric, but there is the ICE generator only has to be a few horsepower, at a single static rpm, hence it can be tiny, dirt cheap, and more fuel efficient than any normal automotive engine. This more than offsets the massive battery size reduction, which is a huge cost for EVs.