Retail investors are mostly newbie investors and they are more likely speculators not investors. They are most vulnerable participants in the market with market crash, correction, wash out.
The market need capital flow to grow but retail investors or speculators don't have much capital. It's mainly from institutional investors and retail guys only join when the market is very hot. They will be washed out it hot corrections or crashes later.
The market can not go down forever and if you believe in Bitcoin, it is very good chance to invest or accumulate more.