If you are turning, it is solely your responsibility to avoid obstructing legal oncoming traffic. If you hit someone doing the speed limit, you fucked up. That's it. There aren't ifs and buts about it. If it's hard to see, try harder. If you don't have much time, make the turn quickly when you commit to it. If the way isn't clear to proceed as soon as you turn, make the turn immediately. Whatever: it's your job to figure it out. If you can't figure it out, you don't get to drive.
