Patriotism, as long as it stays just that, is probably not going to do much damage. It’s just kind of there and annoying, but not directly dangerous. But it is still a ridiculous concept to be proud of the arbitrarily drawn lines within which you were born, and being loyal to them simply because you were born there. That doesn’t mean you can’t like your country and want it to prosper. But emotional attachment to and positive attitudes towards a nation by default is cringe at best. Praise a country if it does something good and critisize it if it fucks up. But why would you give one country special treatment there? And patriotism is never far from being exploited and turned into nationalism at the slightest inconvenience. Sometimes, it doesn’t even take an inconvenience, as evidenced by football right now.