How do you beat dumb chess players?

The tutorials that I'm mostly seeing are for intermediate chess players. But, I hardly even play with intermediate chess players in real life.

you can beat them by knowing your opening theory ,I assume if they 'dumb' they won't know any theory

Sometimes irony confuses me

The basics beat bad players.

Good board vision, meaning you're aware of when something is directly attacked and you don't often give pieces away for free to one move threats. After their move, you're consciously looking to see which of your pieces have been attacked.

Following the opening principals as best you can to give yourself a better chance of having tactics for you, and less chances for them to have tactics early. Opening principals won't make a lot of sense, and you'll be tempted to break them often, but following them on good faith as often as possible helps.

Knowing the basic tactical motifs like forks and pins. When it's your turn you calculate forcing moves like captures and threats. If it doesn't win material you examine a different move order or add a different forcing move in an effort to discover if there is a way to win something.

Unintentional irony amuses me.

By being less dumb than your opponent. 

I beat dumb chessers with 👥🔨

Define "dumb"

you mean americans