Prevents redirection to Russian pages of AliExpress and tries to reach global page as a mayday fallback. Install with the following link: https://gist.githubusercontent.com/Erquint/4b0dada56b0fed4412ed8cb2e97a2473/raw/DerusifyAliExpressLinks.user.js

DerusifyAliExpressLinks.user.js

// ==UserScript==
// @name        DerusifyAliExpressLinks
// @description Prevents redirection to Russian pages of AliExpress and tries to reach global page as a mayday fallback.
// @version     1.0
// @namespace   gness.na@gmail.com
// @author      https://gist.github.com/Erquint
// @homepageURL https://gist.github.com/Erquint/4b0dada56b0fed4412ed8cb2e97a2473
// @updateURL   https://gist.githubusercontent.com/Erquint/4b0dada56b0fed4412ed8cb2e97a2473/raw/DerusifyAliExpressLinks.user.js
// @downloadURL https://gist.githubusercontent.com/Erquint/4b0dada56b0fed4412ed8cb2e97a2473/raw/DerusifyAliExpressLinks.user.js
// @match       http*://*aliexpress.*/*
// @run-at      document-start
// @noframes
// @inject-into auto
// @grant       none
// ==/UserScript==

if (window.location.href.includes('.ru/')) { // Crude mayday fallback just in case. May break in the future.
  function fallback() {
    document.querySelector('.language-selector > ul:nth-child(3) > li:nth-child(1) > a:nth-child(1)').click();
    document.querySelector('.ui-button').click();
  }
  document.addEventListener('DOMContentLoaded', (e => {setTimeout(fallback, 5000)}));
} else { // Upon each click checks if it's a redirection element and defuses it if needed.
  function main(event) {
    if (event.target.tagName == 'A') {sub(event.target);} // If Web was ever sane.
    else if (event.target.parentElement.tagName == 'A') {sub(event.target.parentElement);} // May break in the furure.
    return false; // Prevents following the original link.
  }
  function sub(element) { // Simple replacement. Sufficient so far.
    window.location.href = element.href.replace('.ru/', '.com/');
  }
  window.onclick = main; // Tab-wide global callback.
}

Mozilla Firefox 89.0b14 (64-bit), Tampermonkey 4.13.6136 (1 May 2021) — the add-on does not work, there is no redirection to the global Aliexpress website.

I'm sorry.
It worked for the limited testing I did, but either something changed or AliExpress works differently for different users and thus needs different patches.
It was made on request by a certain individual and they have since also reported it not working reliably for them.
Take it as proof of concept maybe, but I'm not planning to adapt it further, since I don't even use AE on the web myself.