Must we leave the vicinity of people we don't always agree with?

That is a _disgraceful_ misrepresentation of the facts. So much so that it renders replying to any part of your point completely impossible.

You (with the person who tweeted) are misrepresenting both this protest and the opinions of the people who are protesting.

Is the above the post lionizing Tommy Robinson, or is there more full-throated support in X posts somewhere?

Shame on DHH for eliding who Tommy Robinson really is -- a football hooligan and violent thug:

https://en.wikipedia.org/wiki/Tommy_Robinson#Criminal_offenc...

DHH knows nothing of London, and the hugely-ironic idea that it's too full of "non-native" British people for him -- a white foreigner -- to feel comfortable moving there is the purest sign of who he is.