I wonder how much of it is explained by all the company retirement plans that are set to auto invest via an index fund. They says it’s retail meme stock buyers

I wonder how much of it is explained by all the company retirement plans that are set to auto invest via an index fund. They says it’s retail meme stock buyers… but what if it’s everyone who doesn’t have time to look at things and these publicly traded companies are now just selling into those reliable biweekly/monthly retirement account contributions.