How is this acceptable?

So yeah, recently I got placed into a game with two toxic (Rammus and Vayne) players on the enemy team. They spent the entire game flaming my team, and more specifically, me, for my refusal to surrender, calling me things along the lines of a gay fuck.

I ended up muting them and playing out the rest of the game.

Later in the end game lobby, they spent a good while hurling insults at me while I sat with my hands tied due to the Summoners Code. I ended up leaving and reporting both them, unfortunately, I forgot to take screenshots.

I later reported them to Riot support. They said they'd look into it. Its been around half a week now. The players are still unbanned despite flaming the entire game.

I am not meant to seem condescending towards Riot in this post, I'm just frustrated that these jerks who spent an entire game belittling me and my team get to escape unpunished.