Anons, i have question about US polls.

If for example you are in favor of Biden, and they show to you that in every poll he is winning everywhere, and winning hard, does it mean that MSM and pollsters are harming or helping Biden?

Because in my eyes, they are helping Trump.

Why? Because if your favourite is winning in every poll, you can spend election day for example with family, and he will still win because of this crazy support.

Or am i wrong?