The managers of those funds are trying to match the performance of the market, not *improve* on it (by voting on corporate governance decisions, say), or to beat it (by only buying stocks of companies they judge to be good bets):
https://pluralistic.net/2022/03/17/shareholder-socialism/#asset-manager-capitalism
Your family home is *nothing* like one of these companies. It doesn't have a bunch of minority shareholders who can force a vote, or a large block of disengaged "owners" who won't show up when that vote is called.
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