In any other civilised country, if the government started a war without congressional approval. They would riot in the streets of the capitol
No, they wouldn't and they haven't. In Europe, this is what's fueling the rise of the far-right. The difference is largely that their forms of government are more resilient. You could not be any more mistaken. There are riots in Europe, just like there are in the US, but MAGA is perfectly able to organize riots and protests as well, and so are their fair-right counterparts in the EU, and theirs has much more money behind them and is much more cultified.