You think that truth and integrity matter. They don't. Once you disabuse yourself of that notion, you are left with the meme and with the story. And while you think that the story is how he is wrong, he does not care because his story is about the things he wins.

Example - the climate. Everything in the US government was bleached from the words "climate change", but he is bent on occupying Canada and Greenland, both places which will be much more profitable when the ice melts. People can continue shouting from the rooftops that there is a climate change and he denies it. While they are busy doing that, he positions himself to profit from the incoming disasters. All the better if he can speed them up by selling more petrol.

Example 2 - government cuts. Will they make the government more effective - no. Will they make his cronies richer - yes, while making other people poor and easier to exploit. Is that a smart plan - no, but he is not the one paying the price, so it is fine.

Example 3 - tariffs. Ask yourself not who loses from them, but who wins when the dust settles and the new trade agreements are signed. And I can bet you that no matter how many american households suffer from stackflation or whatever, the household of Trump will not be one of them and they will get out even richer out of that.