As long as you stay away from the sand near the water. It's pretty hard-packed but then as it begins to slope downward it gets soft. I would park a ways up and walk it to see where it's safe to drive. Also the further east you go, the softer the sand gets. Stay on the beach area directly below the entrance (eastern end) that is flatter and not sloping to the water.
Yes, if you stick to the main beach area.
Whatever you do, do not go to the sides of the beach.
We did once with our travel trailer. Luckily we had our four-wheel drive, otherwise we would have been stuck for a long time.
You can easily get a large rig down there. We were just there early Feb 2021 and it was amazing. You need to be careful and scout ahead because one wrong turn and you are stuck. I have a video on my YouTube channel about our trip....you can check it out if you like. https://youtu.be/6hqRPstunaM