Protecting a website from being kidnapped

I have a MediaWiki website in Hebrew;
As common with MediaWiki websites, it has lots of content and rebuilding it in case of a disaster isn’t feasible.

I chose to give that website a Global TLD (a non Israeli X.il TLD) because:

• Currently, the Israeli Internet association doesn’t allow Israeli domain registrars to suffice domain holder details protection; everything must be exposed to anyone, even if it is against the domain holder’s freedom and safety
• As I don’t have an Israeli phone number, some Israeli domain registrars would not support non-Israeli phone numbers and thus, various domain management system software bugs are likely to occur

My problem

Although I have quite a strong email password (>12 lowercase-uppercase-numbers password) which isn’t stored on my computer system but rather solely on my human memory;
I still fear a kidnapping of the website by hijacking of my email password.

If someone hijacked my NameCheap account and/or my SiteGround account and/or my MediaWiki website but not my email account, than I guess I could log in and change everything back to normal (likely by using a backup), but as I currently don’t clear web browser passwords from the main browser I work with (and would prefer to keep handling this way), I do fear an hijacking of my email account (say, by a MITM attack) and then of all the rest, till complete kidnapping of my website.

Possible obstacles in solving the problem

• I only hold Israeli citizenship but not Israeli residency and anyway don’t have an Israeli residence address (and currently prefer not to give that of a relative)
• Neither NameCheap (domain registrar) nor SiteGround (hosting provider) allow me to upload any image of my Israeli passport and/or Israeli ID card (or of myself) which will be automatically copied and principally permanent in their servers.
• Writing my name and putting an image in which my face could be seen in my website is something I want to avoid and would probably be not helpful because an hijacker could delete it (it is hard to delete data from the database of MediaWiki and could cause crashes, but still possible).

My question

How to protect a website from being kidnapped as described above?