I don't rate the new Mitutoyo ( exept digital calipers ) as high as the older stuff either and the same with Starrett .
I have a few mitutoyo mics 70s-80s vintage and the only plastic bit is the label in the frame , now they have plasic ratchets and thimble grips but then again so does my swiss made Etalon 😡 .
It really depends on what you want to buy and where you will use it , if it is just a set of digital calipers from what i have seen of M&W units they are good for the price range they occupy and ok for home use .
If you want micrometers or more advanced measuring tools i would keep a look out on ebay for NOS units or even second hand if they look to be well cared for – many micrometers get purchased and spend thier life sitting in a drawer .
My M&W mic is once again 70- 80s vintage , english made and well built but the new stuff is made under contract to M&W specs so like many other once mighty manufacturers they have also turned to a re badged generic unit . There is nothing wrong with this but you have to bare in mind you may be paying more because of the name for the same unit made in the same factory as a lesser known brand .
Also these days just because it has "made in such and such country " doesn't necessarily mean 100% of the components were made there ! ( except made in China , i don't know of them importing parts in for the stuff they sell !)