No. Let people like whatever they like. So far, in my shorter time here, I've seen more polite rebuttals and more hateful ones when appropriate. Essentially, when someone just says "Hey, I like Fallout 4" most replies are just "ok, cool"
but when the posts go from that to "FUCK Y'ALL HATING ON FALLOUT 4 HERE'S WHY IT'S THE GREATEST GAME EVER GET OVER IT OLDFAG" (okay, it's not usually that bad but it consists of people trying incessantly to convince people who obviously don't like something, to like something)
Is when people respond in a "toxic manner" because they don't need a person who knows little to nothing of their preferences trying to sell them something they have no interest in.
If a salesman dropped by every week at your door trying to sell you something you don't like, you'd eventually respond in a "toxic manner" too because he already knew you weren't interested.
It's fine to like any of the games, it's not fine to tell fans of 1/2 and 1/2/NV that they need to get over themselves and like the Bethesda title.