There are typically two factors that are used to critique clothing production, ethics and quality. Ethically production in China is fairly easy to do well assuming you're not objecting wholesale to giving money to the Chinese economy. Working conditions are normally fine and can be great.
In terms of quality, China is pretty good for a number of types of clothing. I don't know about activewear as we don't produce any, but for many categories at many price points they're basically as good as anywhere else. There are categories where they're not, regardless of how much you pay. I have a feeling that suits might have been one of these but not certain.
For very high end clothing, production in Europe, particularly Italy, is a good sign. For anything else there's no reason why China can't compete on quality for most categories.
China, whether we like it or not, is strong. The West, and particularly its corporations, have shown themselves to be incredibly weak when it comes to kowtowing to what amounts to populism.
So then why bother splitting efforts with fights you know you can't win when you can 100% invest in trouncing those who've shown weakness?
Also bringing up China in particular opens a massive can of worms that nobody is really comfortable with. There's been a bunch of companies we all "know and love" who've shown their support for their protests and the BLM political entity over the course of the last few weeks whose output comes from what is essentially slavery in Asia. Again though, that is a conversation nobody seems to be eager to have.
See [1] for a bad article with a few interesting leads as a way to find out more but basically Chinese capital realized that made in China has a reputation problem and have bought italian brands and manufacturing businesses. I’m not suggesting that is nefarious but I am saying that is worth to learn more.
[1] https://www.reuters.com/article/us-italy-sweatshop-insight-i...
Patagonia has been leading the way on ethical manufacturing for a long time. Easily since the late 1990s. They don't appear to be bargaining for rock-bottom price with their Chinese contractors -- they are asking for higher standards, both labor and environmental. According to their website, they have narrowed the list of contractors they work with so that they can monitor them better.
Also, as their website points out, it's important to not fetishize American clothes manufacturing as such. The American textile industry is much smaller than it once was, due to NAFTA and related agreements.
For a lot more, see: https://www.patagonia.com/stories/patagonia-clothing-made-wh...