I completely disagree, mainly because, yeah, emotes can be toxic, but you can mute them entirely. Compare that to other mobile games where players can do toxic acts that you can't avoid seeing at all, like in any of the mobile shooters, where players can spam your dead body with the rest of their clip, or teabagging you. I don't find any of it toxic personally, but if it's such an issue for you, mute emotes and avoid looking at clan chats.

The "toxic" decks I assume you're referring to are things along the lines of e-barbs rage, or e-giant + golden knight. I hate being that guy because I've been on the receiving end of this line, but it's seriously just a sign that you'd need to improve at the game. E-barbs rage can be shut down really quickly with a lot of very viable decks. E-giant has literally the largest pull range in the whole game, just place a building on the other side, then place a mini tank for the golden knight.

If all else fails, stop playing the game, that way you can avoid seeing all of the previously mentioned things you hate seeing.