why we have a surrender option in ranked?

Recently i started playing soloqueue games 24/7, and in many of them i wanted to surrender. You dont have to point out that im a bad player or stupid or whatever, thats not the point. The point is, I didnt want to keep playing, so I call for surrender. But after playing about 500 ranked games the amount of times people actually did surrender is insanely small, about 2-3 games total. Meanwhile, I got a 10 games chat restriction, then 25, then 14 days ban. And all that just from reports for negativity due to me wanting to surrender. Keep in mind, i never afk or int, i always do the best i can and nobody could tell me something about that. They just report me for the surrender. And i ask, why such an option exists, and several times during a game that is, when the 99% of the playerbase is just getting tilted from it? What purpose does it serve besides making people who give up easily, like me, collecting a bunch of reports for using literally a game option? i feel like a one time only chance around 20 min is more than enough using majority vote system. If 3 out of 5 people in the team want to ff that means half the team doesnt want to continue and is forced to a tilting mentally exhausting situation, that will more often than not leat to negative or abusive behaviour followed by reportsand frustration that is usually being carried to the next game.