I am in the same marina, as pictured. At a guess there must be about 200 boats of all descriptions and maybe about 20/25 liveaboard boats scattered around. I know LadyG and almost every other liveaboard. This is the best marina i have ever moored in and I've been in a few. Of course as in all marinas there can be strife between neighbours but things have got pretty bad in that particular corner of the yard. It seems to me they never really hit it off from the start, and has continued to deteriorate. It could have been so different. Yes there are one or two rough diamonds as in any yard but believe me they would do anything for you if in a fix, if approached in the right way.
I personally haven't seen any particular contravention of the social distancing rules but that doesn't mean it hasn't happened, and in fact I did notice how they were ' socializing at a distance' in the sunshine yesterday. Narrowboats moored stern to bank and only 2ft between means that things could be awkward at times especially at this time.
The owner of the Marina would I'm certain step in if approached and try and move you to another berth, perhaps at the office end of the yard. I'm sure someone would do a swap, you've got a good mooring there.
As for leaving the yard due to all this, wouldn't you be acting a little prematurely. Are you ready to go "self sufficient" ?
Anyway I've rambled on long enough. My advice, chill, at least for now. If you don't you will go bananas in a marina surrounded by people you're not getting on with.