My take on globalization is that it appears to make sense from a global stability and business perspective. Most of this is uneducated opinion but based on experiences with the local auto industry and some personal thought on the impact:
1. Having inter- and co-dependence between nations decreases the likelihood of global (potentially nuclear) war. It is difficult to decimate another country when all of your aluminum, cars, wheat or salt were coming from that country.
2. From a "big-picture" perspective, global markets enable massive potential growth for many corporations. I lived through the globalization of the auto industry here in Michigan; it was a slow-motion horror show affecting virtually every person, everywhere. Similar things happened in the mining and steel industries to the south and east of us.
3. There is no free-market value to extract from 500,000,000 poverty-stricken people; better to have them working and buying your products. Low growth/low margin industries (laundry soap, packaged food, etc.) were virtually drooling over the thought of opening up the Indian, Chinese and African markets.
4. The assumption that if, through globalization, you reduce entire industries that helped build a nation (steel, automobiles, are good examples in the USA) those people will simple re-train and get jobs in other industries, particularly white-collar or service industries.
5. People are adaptable.
But, these seemingly sensible ideals are difficult to attain. We have seen that:
1. Inter- and co-dependence can be adversely affected by things other than war: e.g. a global pandemic.
2. Not all countries open their markets the same, with trade imbalances being more frequent than desired. More modern, higher-precision industrial equipment simply made Japanese cars better and longer-lasting than the decades-old "Big Three" equipment.
3. There is no guarantee that 500M newly-appointed-middle-class people will even buy your countries products. A global free market is designed so that better designs win; but marketing and market manipulations don't always work out that way. A vast majority will spend less on a product if they can; even if it is of lower quality. (looking at you Amazon).
4. Some people just don't want to be white-collar workers or provide services to others. A "days work" is best measured by the things they built, rather than the processes they optimized, or the signatures they acquired.
5. While people are adaptable, watching them adapt to seemingly non-sensical drivers (at least in their world view) breeds great amounts of discontent. Hence movements like MAGA are born.