
Correct. Presidential systems are most common in the Americas (based on the USA), while Europe has more prime ministers. Uruguay is one of the most democratic nations on the planet. Note that your post said there’s NO democratic countries with a popular vote. Uruguay disproves that.
Nope since they do first past the post as well (most of the time). Famously, in 1951, Labour won the popular vote, but Churchill returned to power since the conservatives got more seats. Same thing in Canada in 2019 and 2021- conservatives ahead in vote share, liberals get more seats Not all though, IE Netherlands has a proportional representation where you get 1% of seats if you get 1% of vote