No, websites have different cultures, so each one isn't a proportionate sample of all internet users.

Reddit leaned a lot more right/libertarian before nearly all coservative subreddits were systematically banned under spez and Pao. Spez also enacted more subtle censorship like algorithmic tweaks to keep t_d out off the front page and eventually the creation of /r/popular to keep similarly "undesirable" subreddits from the front page.