Yeah, but very basic functionality like actually being able to type your name if you happen to be Japanese requires you to install the OS, then get a combination of strangely-named packages like ibus, im-chooser, anthy, some font packages, etc. and then screw around getting it configured. None of this is documented clearly. Windows or OSX lets you choose a language from a list at install time. Which do you think is easier?
Device drivers are another issue. Linux is simpler if there's a driver in the kernel tree and it works adequately. If there isn't, then it's far more trouble than Windows to find a driver and get it to work. Also, drivers often lack functionality on Linux. For example the Wacom tablet drivers aren't adequately configurable. There are some options in obscure text files that you need root to edit, but there's no simple way to switch mapping on-the-fly or reconfigure your buttons per application. This is all dead easy on OSX or Windows.
Linux may be easier for you, but there are far more use cases than "person with no exotic hardware speaking a language using Latin script".