The reason people are suggesting packing the court is because there is a belief that a 6/3 SCOTUS can simply undo any laws you put in place. The irony here is that Roe v Wade is a perfect example of the court doing just that.
The way we have 9 rulers who are picked by whatever party happened to be lucky enough to have someone die is an absolutely stupid system. I hope every majority congress packs until the court is thousands of justices.