YouTube — unsubscribe from all channels

1. Click or type this link in web browser
2. right click there and click on inspect and go to console section
3. copy and paste this code

var i = 0;
var count = document.querySelectorAll("ytd-channel-renderer:not(.ytd-item-section-renderer)");
myTimer();
function myTimer () {
    if (count == 0) return;
el = document.querySelector('.ytd-subscribe-button-renderer');
    el.click();
setTimeout(function () {
        var unSubBtn = document.getElementById("confirm-button").click();
        i++;
        count--;
console.log(i + " unsubscribed");
        console.log(count + " remaining");
setTimeout(function () {
            el = document.querySelector("ytd-channel-renderer");
            el.parentNode.removeChild(el);
myTimer();
        }, 250);
    }, 250);
}

4. Now Hit Enter