Facebook does not let me delete my account

I did not use facebook for ages, i always thought i need it for my international contacts, but now this new pay or say yes to ads window showed up I realised I did not use it for a long time. So I was like, tech is like clothes, if you don't use it for a year it's time to let it go.
So i tried to delete my acc.
After some research (wtf????) I finally found this page
https://www.facebook.com/help/delete_account
where I can click my through a menu, until I can enter my password to delete my account, and it just does not let me.
""Sorry, this feature isn't available right now""
wtf? how is deleting my acc not available????
fuck this, fuck them. this is one of the "leading" tech enterprises. this is one of the biggest fucking companies in the world.
I don't know how that is even legal.
I'm so fucking angry. Fuck this fucking fuckers!
does somebody know what i can do? can i send them an angry real life letter? do i need a lawyer?
I'm not really in the EU, but the GDPR still applicates to me. so what do I do now to get rid of this fucking fuckers?

ps. looking in the internet does not help nothing, it's just 100s of links to facebook help center. fuck the fucking modern web as well.