Well, I'm not joining the trend. I'm not at all proud of my country, I'm well aware of all its faults and shortcomings, and I think there are plenty of countries that are doing better than ours.
What's to be proud of? A failing economy? Collapsing public services? Widespread misogyny and trolling? Rampant racism? It's not a country to be proud of but one to be embarrassed by.
I was last proud of my country probably in the 1970s, when there was a definite sense of a society that looked after its most vulnerable citizens and wanted everyone to have a satisfying life. I grew up at a time when there were no tuition fees, unemployment benefit was generous, and salaries and working conditions were much better than they are now.
It's just embarrassing when the government flaunts union jacks at its news conferences. Or when people wear union jack tee shirts. Or when football fans wave the St George's flag, the flag of England. Are they really proud of their country? It's hard to believe.
But it's awkward when I happen to live in a country I'm not in any way proud of. I tend to sidestep any conversation that turns to patriotism unless I know the person shares my own views. It could turn nasty.