It really feels like the domestic market is being played by foreigners

Since US stocks mostly signaled a KOSPI decline yesterday,
domestic investors and institutions all pulled out today.
But as foreigners moved in, the KOSPI turned positive..
Some domestic retail investors who jumped in mid-session thinking, "Oh, it's rising?" might have made a profit,
but the ones who fundamentally profited were the foreigners who entered right from the start.
I'm scared that people will think, "Oh, it's on an uptrend lately lol," let their guard down and jump in today,
only for the foreigners to pull out en masse tomorrow and flip the market back to the downside.
Then, only the domestic retail investors who entered mid-session thinking it was an uptrend will end up suffering,
while foreigners will swoop in and pick up the stocks that crash tomorrow.
Since this actually happens frequently, it feels quite plausible..
Lately, it seems the domestic market doesn't even need a specific reason or basis for an uptrend or downtrend; it's just being dragged along wherever the foreigners lead.