I had assumed that any Welsh or Northern Irish person wouldn't have to be told they are welcome.
If you want to fight the battle for England not being the UK then I am with you. The place to start would appear to be with those presumably English commentators who seem to think it is.
As you only joined the forum in 2015 you might not be aware of the extent of the pointless sniping and derailing that occurred during 2013 and 2014 when people (one poster in particular) called out every and all use of the words "England" and "English" as being tantamount to racial discrimination against people from Wales and Northern Ireland. It was one of the reasons I left the discussion then and one of the reasons I'm stepping back now. It's a pointless distraction but we can't get past it.
The fact is that England is in the driving seat in the union by virtue of its population size. What England votes for, England gets, regardless of what any or all the other three constituent parts vote for. So talking about England is not unreasonable in this context, but it will be called out every time it's done.
It's also no use saying, well, say "British" then. Scots are British too, so that doesn't convey the sense of what we're talking about. To say, as a Scot, that British people are welcome in Scotland, just seems senseless. For a while I was using "England+" as a way to get past this, but I'm not sure even that did the trick.
It's also the case that we're specifically being called out for anti-
English racism. (That's AGG, who lives in England, and Architect and myself who used to live there - I lived in the south-east of England for 25 years, and indeed searching for the first three years of my posts on the forum will show me posting from Sussex.) I don't think it's unreasonable in this context to make specifically welcoming gestures to English people, without being called out for anti-Welsh or NI racism. And then when we address that, we're anti-Falkland Islanders. Gibraltarians next, I guess?
Meh, back to lurking.