Gaston may be toxicly hypermasculine and controlling, but at least he never kidnapped and imprisoned Belle. The only reason she fell for Beast was Stockholm Syndrome.
Discussion
That's part of why they went their extra way to make Gaston bad. At first he was an asshole, and little more.
But in the fight vs Beast, Beast wins, and Gaston begs for his life. Beast in his mercy lets him live. And then Beast goes to Belle (who was on Beast's side by that point), and Gaston backstabs him, so Beast throws him off the castle.
Character development. Beast went from bad to good, Gaston went from bad to worse.