UnsubscibeYTbyKMR

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);
}