I think Republicans realized they overplayed their hand when they impeached Clinton. Also, Obama has had nearly a scandal free presidency. Even though nutjob Republicans screamed for impeachment, there were no conceivable grounds
What Republicans did reserve for Obama was TOTAL noncooperation with anything he proposed. Even programs they had formerly supported. Republicans also initiated full time filibuster rules in the Senate where now every bill, significant or not, required 60 votes to pass
What was truly unprecedented was their blocking a Supreme Court nomination for almost a year
Agreed.
Partisanship is on the upswing in both parties and has been for a long time.
The GOP paid a heavy price for the Impeachment of Clinton.
They decided to rein in their partisan opposition to Obama to less epic expressions.
They were still bitterly opposed to him, just less overt about it.
If Hillary wins they will be bitterly opposed to her. With the passage of time from the Impeachment hearings they may be even more blatant.
The point being the Republicans, in this era, would/will oppose any democratic president with bitter partisanship.
Your side's false characterization of this new normal bitter partisan opposition as being Race Based is what has made this into a racial thing, and thus set back Race Relations generations.
Obama supported this vile strategy on your side's part.
You are the bad guys.