All the stats indicate that we're far more polarised now than even 2016, much less Clinton era.
I agree Obama would push up a few percentages - but even your 7.2% is closer to 5 than 10.
The GOP/Fox News bubble is not moving. I guess in fairness neither is the 'liberal elite'. Each sides' view of the other is completely skewed. It's scary stuff.
For me as a clear liberal snowflake who doesn't live in the states, the weird thing is that only one side seems to have the majority of facts, scientists, doctors, international support, logic, diversity and so forth.
It's really fascinating how the GOP's strategy is shaped by its ability to cheat/ use the system. If the GOP had to get near 50% of voters, it couldn't be nearly as anti-everything not old and white as it is today. It would have to have more inclusive policies, or else it woudl shrink into irrelevance. But, gerrymandering be real. In Wisconsin the democrats have more than 50% of the votes, and less than 33% of the seats. That's how you rig it so you only have to care about the minority.
The best thing that could happen to the GOP, long term, is for gerrymandering and suppression to end, because it would force them to adopt actual popular policies.