game cant launch because of pc username

i tried to launch minecraft and it didnt launch. i tried everything and still nothing. i managed to run minecraft when i moved the .minecraft folder into my d drive and launched it through badlion. i recalled that minecraft doesnt handle non-latin characters very well, so i tested it with an emulator and sure enough that was the issue. my username is δχδ and i cant change it, therefore i am unable to launch minecraft other than 1.16.5 on badlion. i have a legal copy of minecraft java and i literally cant play it, and i assume minecraft dungeons wouldnt work either. uninstalling the game didnt work, not even when i erased all the files, implying the issue is not minecraft related. when i try to launch minecraft it crashes frame 1 and shows me an error message that says exit code: 0. i tried most versions and i cant launch any of them. please give me back the game i paid for. thanks in advance.