JSFiddle - React, Tailwind, and code Playground

HTML

<div class="_field">
  <label class="check check_size_L check_mode_radio not_checked">
    <span class="check__i"> 
      <input type="checkbox"></input>
    </span>
    СУКА
  </label>
</div>

<div class="_field">
  <label class="check check_size_L check_mode_radio not_checked">
    <span class="check__i"> 
      <input type="checkbox"></input>
    </span>
    ЗАЕБАЛ
  </label>
</div>

JavaScript

var each = [].forEach;

setInterval(function(){
    each.call(document.querySelectorAll('._field input'), function(node){
      node.click();
    })
}, 500)