"What the UK government is proposing is going to put us on the same footing as US companies when it comes to dealing with EU customers, ie under the auspice of a regime that can’t be trusted."
Not sure you want to alienate the US just to score some political points when by you own admission - the bulk of your business is with the US ( a country that has a larger patriotic base than the UK and more experience of how to exit a union ala 1776). Point being any US company can implement a more stringent data policy beyond the scope of legal remit within the country of operations, so that's a USP that isn't exclusive. More so given you charge in $ already and not £'s or ever have!
But then, that's why the blog is not upon the company domain (of which cronofy.uk is available still) - even they can see it is a bit too politically charged and slanted. So with that, prudent move and appreciate it is good to vent and some venting can cause issues, so a fine balance in that approach and kudos for the hindsight to see that.
As for new location - have a good look as some EU countries offer some nice incentive packages and I'm sure many would love to see those compared.