Damo_1878
Don't care. Not bothered.
Because this is precisely the sort of issue that could split NATO.
I mean, this is pretty clearly not the collective (or even majority) decision that the alliance as a whole has come to. In some reports it only includes one country (us) getting permission from one other party to use one system against Russia itself - so not SCALP-EG, not ATACMS and not anything else.
If this was a collective decision then I agree Putin would be much less likely to respond because of the overwhelming force against him, but whilst it’s just us - not a part of the EU remember - then I think some sort of limited military response from them against us might result in no significant reaction from the rest of the alliance.
I wouldn't worry too much about it as the Polish government are saying
Much of what comes out of the Kremlin is for domestic consumption and appearance
They've drawn down most of their forces on the border with NATO to send to Ukraine, because that is how threatened they feel by NATO. In reality.
This is all for Putin to appear the "strong man". He's picked out Britain as we're viewed as a proxy for the US. So that they can do it, without a huge response from the US. The Iranians have done the same in the past.
There is a tendency for people to view everything coming out of the Kremlin, literally. It's to get relevance. Nothing more.

Russia Ukraine war live: Starmer meets Biden at White House but no decision on Ukraine missiles
Keir Starmer and Joe Biden are expected to discuss allowing Ukraine to use long-range weapons inside Russia.