So for you the 80 sucks on the hiway?
Fair enough.
That is a pretty classic strawman argument.
Most vehicles are pretty good on straight highways with good pavement.
The differences show up on bad pavement and twisting roads. I’m sure that Toyota does a good job at building vehicles with a solid front axle, just as they do with solid rear axles. But fundamentally, you can’t get around the problem of unsprung weight — that is just physics. Which is why except for a couple niche vehicles and heavy duty pickups, most all cars and light trucks have independent front suspension.