You don’t need to politicize this argument. The question is whether the mainstream polls are generally accurate. I think they are.
I am not happy about this btw. All of the Ron Paulites constantly used that cell phone argument back in 2008. We said that our support much be much, much higher because so many of us did not have land lines and repeatedly won straw polls and online polls. When people finally went to vote, it turned out that the mainstream polls were pretty much right.
Name one election in the last twenty years (either off year general projections or presidential year projections) in which the mainstream polls picked the wrong winners prior to the election. Certainly, last time they all predicted a GOP big victory in the House and gains, but unlikely takeover, in the Senate.