You don’t need a survey to understand that the mainstream media (Newspapers and TV) are biased — you just had to live through the election to know that for sure.
Trump is hardly the only one guilty of biassed surveys either. All surveys have some bias: Left Wing political surveys are every bit as leading.
Why don’t you complain about the survey that found 97% Scientific Consensus on Anthropogenic Climate Change? First they excluded any scientist who wasn’t a Climate scientist, then they eliminated the 65% who did not try to establish blame for Climate Change, then they said 97% of the remaining 35% blamed humanity. This is like asking only those who voted for Trump to comment on the fairness of the left wing media.
I did my your conclusion though: “ Gone are the days when republicans and democrats reasonably debated diverse points of views in order to settle on what is best for the country, which typically requires compromise on both sides.” Blessed are the peacemakers, for they shall find common ground for compromise. Western politics need Peacemakers like never before.