Tell that to my cheap phone made in China running an OS made by developers from around the world. My Turkish t-shirt, the Spanish tomatoes I ate this morning or the server I'm remotely setting up on the other side of the planet, so my company can sell their services there.
You benefit as a consumer, but you may lose as a worker.
We end up in this strange environment where manufactured goods are very cheap compared to housing and professional non-importable services like health and education.
The mere existence of globalization is not a counter-argument to the grandparent. To construct a counter-argument, you need to proof that the Turkish t-shirt and Spanish tomatoes are actually a benefit to you (or rather, to the mythical "average person").