“There is ALWAYS bias. You cannot control for all ...”
And there’s the matter of who paid for the poll.
Conclusions create the methodology.
Agreed! Remember polls are less about informing you than influencing you. No one spend millions of dollars on polls without some purpose - typically to persuade you to take action (vote) or not take action don’t vote. You are the target of this influence campaign. The information is only valuable if action is attached.