New Player Experience is terrible - Smurfs need to be brought under control

Honestly, there are so many bots, toxic people, premades and smufs, the new player experience is terrible. It is pretty obvious that the system cannot detect smurfs so new players are getting driven out the game by these toxic people. Why is Riot doing nothing about it? The new player experience is the most important demographic for the survival of League as a game. Most seasoned players don't care if League dies tomorrow, they will just move on to something else but Riot should care about the hundreds of people being driven out of the game because the new player experience is so bad.

I created an alt on a completely DIFFERENT IP, with a DIFFERENT COMPUTER using a DIFFERENT EMAIL and my games were still SWAMPED with smurfs. I asked players after the game how many were smurfs and 90% admitted to smurfing following an account ban or general smurfing. What is the solution here? What can Riot do to discourage or outright punish smurfs?

My solution would be to ban the "player invite" system until level 30 so that people before level 30 cannot invite other players to join the game. That way it ensures a level of fairness. Also auto-ban any accounts that have an unreasonable number of deaths or bad item perchases.

People may not like that solution but it seems like the only way to ensure that people will not abuse the F2P nature of League and ensures a fairer, more competetive time for everyone.