There is no country better than the USA. I know I'm gonna get trolled for this but WE ARE a melting pot compared to other every other country. Compare immigrants to European countries to immigrants here. They assimilate much better here whereas in countries like Sweden immigrants have to make their own segregated communities. There is so much to be proud of from a leftist perspective of our country.
More on topic, mass shootings, while being in high amount in the USA COMPARED to other countries, is still not a common occurrence. It's like a thunder strike. I understand the emotional trauma from a mass shooting but that's exactly that. It's emotional. If we're worried about guns killing people we'd focus on handguns. Let's ban rifles and even if it prevents mass shootings it doesn't make a dent in death by gun.