Treading carefully here to avoid getting political, but something I've noticed throughout the pandemic has been the divide between urban and rural Americans.
I think people in larger cities and higher populated areas have taken it more seriously. It makes sense, because people who live closer together are more likely to spread diseases by sharing space and interacting with others, whereas rural Americans are more spread out.
Take Fort Wayne, for example. I went shopping at several stores there last week. Probably 90% of the people I saw, children included, were wearing masks. The next day, I went to Walmart in my hometown. It was very busy, and I saw two masks the whole time I was there. Fort Wayne residents are obviously more cautious than the people in my community, where masks are regularly met with derision, eye rolls, and sneers about being a sheep. Like the guy at Walmart who walked under caution tape and simply said "arrest me" to the store employee who called him out on it.
This is largely a "rural vs. urban" mentality. Rural Americans are inherently stubborn and HATE being told what to do, even if it's for their own good. Their motto seems to be "if it doesn't kill you, it's safe." I'm sure you know people like this. They're the ones who brag about how drinking from a hose, riding without seatbelts and eating raw meat had literally no impact on their well-being, among other things. They tend to have a very cavalier attitude toward humanity and view life as a privilege, an opportunity that could be taken from them at any time. They don't care if they get sick, because they think they'll just recover, and if they don't, well then that's life.
Of the people I know who fit this particular demographic, they feel that at best, this is all a big overreaction to something that's on par with the flu, and at worst, it's a conspiracy to prompt a change in leadership at the top.
I don't know if there are people like this in other countries. Having in-laws who were not born in the U.S., I do feel that other nations probably aren't dealing with as much backlash as we've seen here.