setInterval(function() {
  window.scrollTo(0, document.body.scrollHeight);
}, 2000);

// wait until scrolled to bottom completely

$('.ProfileCard-content').each(function() {
  var status = $(this)
    .find('.FollowStatus')
    .text();
  var unfollowButton = $(this).find('.user-actions-follow-button');
  // change 'follows you' according to your language environment
  if (status != 'follows you') {
    unfollowButton.click();
  }
});