Election denialism is about rejecting official election results.

But anyway, on the subject of the usefulness of your vote, Trump was elected on an America first platform, touting ending foreign wars and avoiding new ones.

If you elected him and his party based on that I think you're going to be pretty disappointed with the effectiveness of your vote in its ability to bring about actual outcomes that you want.

>Election denialism is about rejecting official election results.

That would be the implication of such statements as "our democracy has been subverted by the big corporate conspiracy".