Is there possibly a way to bring Google Earth site models into SketchUp?
No. Google’s terms of use prohibit that. You can get terrain and imagery through the Add Location feature in SketchUp Pro but it doesn’t come from Google Earth.
What version of SketchUp are you using? Please complete your profile.
SketchUp 2020. The site imagery through SketchUp sucks.
You could use Placemaker to get higher quality imagery.
Back in the old Google days, the Google imagery was available but once Google lost interest in SketchUp and sold it off, they discontinued allowing use of the GE data and imagery which forced Trimble to find another source. That source doesn’t come for free, though. For most users the image quality is satisfactory but for those who need higher resolution, it’s available at a price.
Maybe you could update your profile so you don’t get asked that question in the future.
I have found it unusable as well.