Honestly, I get far more hate for picking Sombra than I see others get hate for picking Widow or Hanzo. And usually with Widow it feels mostly due to fatigue. It's a rare game where my team doesn't have a Widow/Genji on it. Usually both. Which makes things difficult for the other four players because it's going to be tough beating the enemy team if they're not running an equal number of "lone wolf" players.
I don't get why people care so much, I guess I understand in competitive but people care way too much about this stuff. Its a videogame, have fun.
This is the reason I stopped playing Dota
This... isn't really analogous to Dota in my experience. You'll get "hate" in Dota if you don't pick by role, certainly, but that's due to the nature of the game. Your chances of beating a team with two supports while you are a team of five late game carries is really marginal if the enemy team actually knows how to play with their supports (which isn't even a given).
I can't really think of any specific heroes in Dota that are as hated. Perhaps Techies?
Probably Techies.
But with a roster over 130, you almost never see Techies in any game.
I never got mad that they picked them, but so many of them were bad with them and wouldn't switch.
At that point you're just being a detriment to your team. Which is pretty shitty.
What makes you think that them switching to another hero will make them more effective? If the player has sunk 60 hours into Widow and is useless, they're not going to suddenly pick up Reinhardt with 0 hours of experience and be a god. They'd just blindly charge solo into the enemy team, charge off cliffs or drop shields at the worst possible time leading to the death of their DPS.
Essentially: if they're shitty on their favourite hero chances are they're shitty on every hero.
So i see this talk everywhere and that Hanzo main meme and all that junk but I don't play overwatch and i feel like that kid looking through the window at the toy display...
every video i see of hanzo he is just wrecking people... i can understand the widowmaker hate if you are on offense and they are hanging back not contributing but where does the hanzo hate come from? Is he just mostly terrible>? Why so many people main him them? He looks aggressive enough and shooting a giant 1 hit kill dragon through walls seems like it could be a valuable defense option even...
Probably too complicated to explain easily/quickly but still... i don't get it.
Is that a pro-genji? (ya'll say this ... right? Am i Overwatching now? *cries*)
Of the two, I've only played Hanzo to any reasonable degree. I think most of the Hanzo hate boils down to meta adherence and community stigma. If you're a player that's trying to follow the "pro scene" as exact as possible to increase your odds of winning, you're going to hate any "off meta" pick. Hanzo is... inconsistent at best as a hero so while you may have matches where you're murdering everyone with each released arrow you'll also have matches where you miss everything and just die constantly.
But of the two, Hanzo is far more likely to be useful than Widow in my experience. Scatter arrow, sonic arrow and his ultimate will still do some work in the choke heavy designed maps. It's just if you're facing a team that's coordinated (or feels coordinated), then them diving your defence is going to make Hanzo feel less useful since he doesn't handle close up pressure well at all. So if your team can stick the enemy at the choke, you're fine. If they break through, your defence isn't likely to hold and it's easy to see how useless Hanzo is in that situation.
As for attacking, Hanzo isn't great at diving so if the enemy has a Hanzo (which is likely) then you sticking at the choke and holding back is going to weaken your team's push/dive which is exactly what you want to do against the enemy Hanzo.
Long story short, Hanzo is a gamble and if a player is going to complain about their teammate's hero selection then they're likely the type of player that isn't going to want to gamble on inconsistent picks in the first place. Case in point, I never see Widows complain about Hanzo picks just their performance.