Uh, that's how it works. The president gets to appoint justices to fill vacancies. Obviously, they appoint people who are consistent with their policies. How exactly is court packing going to "restore a fair balance"? If Old Joe did that, where would it end? The next Repub president would just expand the court further and the cycle would be repeated endlessly. It is stupidity to suggest. Old Joe is an establishment guy. He is not going to pack the court. He is smart enough to understand that won't work and he is nearly 80 with two brain operations. What is your excuse?
Except when a Democrat is President and the right wing Senate illegally blocks the nomination and vote from happening. But during an election, the corrupt GOP rams through a far right wing extremist unqualified judge going against their original bogus argument for why a judge can't be confirmed.
That's ok, Joe Biden will expand the Supreme Court and the Democratic Senate will investigate Kavanaugh who perjured himself and will have him impeached.
Donald Trump is nearly 75 with dementia.