Nowadays the hyphen is the only easy dadh to type
That's not true in general. I personally use the German Extended (E1) layout (when I'm not on mobile) and the em dash is super easy to type. There are also lots of other custom layouts used by people who care about typesetting.
Even people that don't internationally care about typesetting sometimes use them because their tool (like Word and some CMS systems) automatically replace hyphens in specific places with em dashes, or substitute straight double quotes with the correct quotation marks (depending on which country you are from)
And now the UK left the EU, they have way less bargaining power.