No. "No one" is an excessive statement here.

Actually, the majority of users don't have this issue, because in one way or another, the number of files in their Xcode project that il2cpp has to compile is kept low, and it translates in a command-line that's passed to libtool.exe that's under the command-line size limit imposed by Microsoft.

Simplifying/refactoring your Unity project (merging scripts together, etc) would probably help.