Brooks Brothers has both non-Chinese-made and specifically American-made Oxfords in their lineup. They'll probably need to be tailored at the bottom, but I've never had an off-the-rack shirt that didn't need at least slight alterations. Add on top of that their maintained emphasis on quality for their staples, and that's all I've got in my closet.

I've heard the same, but my 2021-built fans have been exceptional so far. Running for over a year straight now.

https://www.manufactum.com/ if you're in the EU.