Most homes would look pretty Spartan without stuff from China for example.

0% is not happening without an ungodly drop in living standard

If the US government forces them to, Microsoft and Google could refuse to serve Office 365, Microsoft cloud storage, Google Drive, Google mail, all online services that we use Google to log in with, Android, so nearly all smart phones, Windows and MacOS. Society would grind to a halt.

If Taiwan loses access to ASML, then Europe loses as much as Taiwan or US does, and the effects could take years to feel

I'd imagine Europe would try to nationalize all EU assets of these companies if they did get cut off and try to recover any data that lives in Europe (though would take a long time).