That's bullshit. You didn't follow this election closely, evidently. Pollsters consistently over-sampled Democrats, minorities, women and consistently under-sampled Republicans, Independents, whites and men.
Each poll used different sample weightings. But the actual weightings of each demographic group are known and published. Comparing the poll sample weight against the actual proportional size of the demographic group showed how large the bias actually was.
In >90% of cases, it spelt a 5-10% margin for Trump. A difference of 10-20%, as the lying media (majority of pollsters) had nutbag Clinton ahead by 5-10%.
As far as your claim no legit pollster got it right. That's more bs.
The LA Times/USC poll consistently had Trump ahead by 5-10%. Same with Rasmuessen. Go check their methodology then report back here. Thanks.