Does anyone actually believe “polls” like this anymore, especially after the egg on face last round of manipulative malarky during the lady election?
Yes. But that requires an understanding of what polls are and what they are not. Polls give an indication of a
probability of a result
not a prediction of a result. On average in 2016, national polling was quite accurate regarding the popular vote. At the state level, results were less accurate, as they usually are, but not very far off from average polling error.
Still, the very slim margins (0.2% to 0.8%) in a few key states which were won by Trump were within the margin of polling error. Put another way, if Clinton had received just 1% more of the actual vote in Wisconsin, Michigan, and Pennsylvania, she would have won the electoral vote in addition to her win of the popular vote.
One poll is just one sample taken of a moment in time. Individual pollsters vary in their historic accuracy and methodology. Poll aggregators are generally a better indicator of what a result may be... within the margin of error of course. Of the poll aggregators, 538 is my preference. They have a deep understanding of polling and statistical analysis. They have measured the accuracy of various pollsters and have ratings for them. They have sophisticated methods for weighting their poll averages and have a realistic outlook on polling.
Here's the headline of an article that 538 published
just a few days before the election in 2016; "Trump Is Just A Normal Polling Error Behind Clinton"
https://fivethirtyeight.com/features/trump-is-just-a-normal-polling-error-behind-clinton/ Their article the day after election day is also revealing...
https://fivethirtyeight.com/what-a-difference-2-percentage-points-makes A 2018 analysis of the state of polling with a lot of data showing past error rates...
https://fivethirtyeight.com/features/the-polls-are-all-right/You can find the latest results from 538 here...
https://projects.fivethirtyeight.com/polls/president-general/national/Pollster ratings are located here...
https://projects.fivethirtyeight.com/pollster-ratings