An authoritarian government elected democratically is still democratic. The whole point of democracy is that the people choose the government they want for themselves.
It's not "most Poles". It's realistically a quarter, maybe a third of the population. Thankfully, the turnout increased from 51% in 2015 (when they won the absolute majority for the first time with 38%) to 68% in the second presidential election vote in 2020 (when they also won, but with a pretty slim margin).
> 30% of the population votes for X, 30% for Y and 40% for Z.
> Now, even if followers of X and Y hate Z more than each other, the winner is still Z.
In this situation, Z would not win a runoff election though. In 2020 The PiS candidate won the presidential election[1]. I think saying that most Poles prefer the current government is imprecise but still truthful, therefore.
Except votes for parties who get less than 5% (if running alone) or 8% of votes (if a Coalition) do not count. So that 40% becomes 52% and suddenly the only thing you can do as a minority party is yell.