Well the success of the uncompromising tea party in taking over the Republican Party and leading the way to Trump seems pretty obvious.
I’m not sure how anyone who follows Democrats wouldn’t see the constant compromises unless they’re center or center right. Pelosi has control of the House but refuses to pass extremely popular ideas like pay check guarantees or cash per month for everyone, or rent cancellation etc.
It could setup a showdown in the senate where republicans have to vote down very popular ideas, but she refuses.
That’s just a recent example, it happens continuously...