Why don't Americans use electric kettles? https://youtu.be/_yMMTVVJI4c?si=t7nyeDTJIuVDfsQq

Most Americans have a coffee pot instead of an electric kettle. Coffee is a cultural staple in the US. Tea is not.

Why does America look like poor Poland villages

Can't say I know what that looks like, but the US is a big place. There's a lot of different looks to it.

But even poor Poland Villages have electric kettles.

We do have them. You can get one at nearly any big box store. They're cheap too. Most Americans still don't own one because we have no particular need.