They are by definition hypotheticals. "IF the Election was held today ,who would you vote for?" There's no guarantee these people who answer polls will actually go out and vote. That's the main weakness of polling.
And remember that GEOTUS's popularity amongst his base is very strong, while Sleepy Joe has no enthusiasm behind him.
Also remember that feeding people half a redpill is better than nothing. I live in a blue state with a bunch of NeverTrumpers. Whatever, they are retards. BUT, I am working like hell to at least expose the socialist left's bullshit and hypocrisy, and that does have some effect. I may not get these morons to flip to GEOTUS, but I can work my hardest to make sure they don't vote for Biden either.
So, don't give up the good fight. Make sure to get out there and vote, and don't hesitate to engage with libs if you get that chance. You may not be able to flip them, but you may be able to stop them from voting for Biden.
Very key element of any poll is registered voter vs. likely voter and their enthusiasm. Also, land line vs. cell phone. When they take a national poll, remember that we have an electoral college for a very important reason. Biden and Hillary both benefited from a media that wanted a desired result from their pollsters and skewed the sample to obtain it. Also, their polls numbers were highest when they were doing less public speaking. You watch, when Biden is forced to go back out on the road and people see how decrepit he has become, Trump is going to look a lot better to Independents.