When has that ever actually happened? Like anything else, there will be exceptions upon exceptions because the rich have the money and influence to successfully lobby Congress.
And the rich already pay the most in taxes, and the richest get loopholes:
The top 1% of earners pay 45.8% of income taxes.
If you think the top 1% are going to pay even more in taxes without a massive concession, I've got a bridge to sell you.
Harris couldn't pass that even if she actually, truly cared, and I fervently believe she's just pandering to the left for votes. I don't think she actually believes in most of the policies that made headlines, I think she just wanted to be Biden 2.0. She said as much in interviews, and it's why she lost: she couldn't convince her base that she's actually different.
If you wanted actual, meaningful change from the left, Bernie Sanders was your best bet. I don't even think he was that good of a candidate, but he actually seemed to believe in what he promised.