What does this have to do with the topic we are discussing? Yeah, that was complete bullshit. If the argument is that the Supreme Court is illegitimate, then I'm with you. However, this particular ruling probably wouldn't be impacted by a change in the makeup of the court since, as I pointed out, it was a 9-0 ruling. Replace all three of Trump's nominees with judges that agree with you, and you still lose 6-3.
Personally I think Biden should have stuffed the court with one judge for each Federal district (13). Even if he did that, and all the new judges took your perspective, you still lose 9-4.