js vanilla when i remove one object it removes all of them code example

Example 1: vanilla js delete element

// delete an element from the dom
var elem = document.querySelector('#some-element');
elem.parentNode.removeChild(elem);


// keep element in dom
var elem = document.querySelector('#some-element');
elem.style.display = 'none';

Example 2: js vanilla when i remove one object it removes all of them

function removeItem(e) {
    var target = e.target;
    if(target.tagName !== 'LI') return;
    target.parentNode.removeChild(target);
}
list.addEventListener('click', removeItem);