THIS IS THE 2021 EDITION OF THE HOLLYWOOD EBIKE RACK
Have you watched some to the videos on YouTube where people put the front (or back) wheel up first. Also, you might try loading the bike from a sidewalk or other elevated area. If all else fails, Harbor Freight and others have small motorcycle racks with ramps that might work for you.
Hey it is heavy. I am thinking about just getting a motorcycle hitch rack that has a ramp you could just roll it up. They are made for "light" dirt bikes. Just an idea. 4 ya