Capital gains

I am not one to predict the stock market but my common sense tells me there will be a sell off at the end of this year. Capital gains occur when you sell something you own or when you receive dividends. The current capital gain rate is 20%. Recall Warren Buffett saying he paid a lower tax rate than his secretary. Biden's tax plan will increase the capital gains to 40%. This means if you sell your stock this year (2021) you will pay 20% but if you wait until 2022 you will pay 40%. When are you going to sell. Is anyone awake. This higher rate applies to people who have earnings of more than one million dollars. These are people who have the no how to move their money around and they will do just that.