these things are cyclical and with a 9 person team, there's always going to be a majority. I think you're putting too much emphasis on the who and not even looking at the rulings. Certain justices can be counted on to lean a certain way consistently, but look over the last few years rulings, the left leaning justices almost NEVER break ranks, but the supposed right leaning justices have caved fairly often (this roe stuff not withstanding). Roberts can go either way on stuff, Kavanaugh and ACB have both been a lot more neutral in their rulings than far right.