That would be courtesy of Brexit.
Not this recent corona crisis.
I'm in Ireland so we look to Britain a lot. Our news and weather covers Britain and we are always aware of what's going on there (not reciprocated, as revealed by Brexit). Anyway, Brexit showed a country who were in no way cohesive and had no idea what they were doing and where they were going.
As a nation who looked up to our big neighbour this was shocking and scary (if they don't know what they're doing how will our lot know). Luckily we had a government who (more or less, definitely not perfectly but better than previous ones and better than our neighbours) pulled together and focused. (Btw it didn't save the government who got their lowest ever ratings and got ousted at the recent February elections but have saved their asses by being totally on the ball re Coronavirus Crisis But I digress)
Boris Johnson was the cherry on the cake. What sticks in my mind was a clip of Boris being asked the price of milk and saying, in his pompous voice, I don't know but I can tell you the price of a bottle of champagne! (to Irish readers, imo, this is the equivalent of David Cullinane's "..tiocfadh ár lá" and then his becoming Taoiseach!).
We still follow your news, look at, and worry about your news, but you are no longer the big sibling nation to be looked up to. Everyone needs someone to look up to and hopefully we will still have the EU and their member states after this. I lived in the UK for years and had a wonderful time, I have wonderful neighbours who moved here from the UK. That closeness should have been treasured and nurtured on both sides but we (speaking from the pov of those i speak to) are mostly grateful that we have the EU's support as we are a small island who need allies. It's important to remember that.