Please riot, PLEASE BAN AFKs

I used to play like 5 to 6 games per day until last week when world championship is hype. But in the recent few weeks I only play 2 to 3 games per week and THERE IS WAY TOO MANY AFKs, this is not the first time I complain about afks, I hate afk more than anything in this game, I like toxic players more than afks tbh. I only played 3 games this week, there are total of 3 afks in my team, can you please, taking afk more seriously. It took me a year to finish the missions where I need to win games while doing some others such as killing a baron or rift shelly, but I never able to win because THERE ARE WAY TOO MANY AFKS. Please Riot!