If you can't see well enough to turn safely, you can't turn. Making a left into a lane of traffic, you do not have right of way. We have a similar visibility problem with parked cars near our driveway and our municipality allows for a certain amount of yellow paint on curbs adjacent to driveways, specifically for visibility. People generally respect it, or at least park further than before the paint. I'd encourage investigating if this is an option where you live.