Racism, sexism and patriotism require human beings be treated differently for no good reason. At least racism and sexism don't require you to die for the cause, unlike patriotism.
You accept your race is no better than mine,
so you're not a racist.
The Black Lives Matter movement worldwide reminds us that race is still a major stumbling block in human unification. Unless race is universally regarded as not a good reason to treat people differently then regarding nationality as no better a reason than race for treating people differently has no chance of acceptance. And unless nationalism is forced to a back seat, war is sooner or later inevitable.
You accept your gender is no better than mine,
so you're not a sexist.
The MeToo movement reminds us just how far gender equality has yet to go before male, female and transgender are treated equally.
IF YOU ACCEPT YOUR COUNTRY IS NO BETTER THAN MINE,
THEN YOU REJECT PATRIOTISM.
America blaming the SARS Covid-19 virus on China plus the antecedent trade war has activated the Thucydides Trap, first warned of almost 2,500 years ago by Thucydides in his book 'The Peloponnesian War'. It warns of the inevitability of war when a hitherto dominant state (for Thucydides, Athens) is threatened by the emergence of a new state (Sparta). Xi Jinping, the President of China, now relegated to the title General Secretary by America, specifically discussed how China's rise could avoid the Thucydides Trap. One can be a Sinophile while condemning China's fascist system.
PATRIOTISM IS THE SAME AS RACISM AND SEXISM EXCEPT THAT PATRIOTISM MIGHT ORDER YOU FIGHT AND BE FOUGHT AGAINST, KILL AND BE KILLED.
And remember that should war come there will be no more talk from brave voices like Greta Thunberg of climate change, just nuclear winter.
First and foremost we are human beings,
global citizens.
As much as no reasonable person today regards the earth as flat, no reasonable person will in future regard patriotism as virtuous.
Our allegiance must first and foremost be to humanity, not the nation, if this planet, it’s people, animals and plants are to survive. Patriotism is no different to racism or sexism. It provides no good reason to treat people differently. Patriotism is in fact treason on humanity. Its just another immoral 'ism'.
Recognizing this is important in itself. If enough of us reject patriotism, things will change. World government, even an end to the veto in the United Nations Security Council may be decades or a century away. In the meantime an individual's scepticism of patriotism can effect change. This scepticism can take many forms. Some of these are canvassed below.