That's not "kinda the same" at all. You can feel however you like about the strategy, but the constitution specifically doesn't elaborate on how many justices make up the supreme court. Article III simply states the following:

> The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish.

There is a huge gulf between ignoring standing law or a supreme court ruling and ignoring precedent. One involves choosing not to acknowledge i.e. disobeying, an authority, and the other involves choosing to act differently than has generally been expected in the past. Moreover, at least in recent history, it's primarily the Republicans who began the practice of ignoring precedent, long before our slow descent into where we are now: blatantly flaunting the law. See Merrick Garland's ignored nomination or the house's recent ludicrous delay of swearing in an elected representative for just two easy examples of this.

I mean none of this in any partisan fashion. It's simply a matter of fact. The idea that the GOP and the Democratic parties somehow engage in the same level or kind of antics and are thus deserving of the same level of nihilistic apathy as some kind of moderate position is charitably tragically misinformed.