You are conflating different things here.
First the SC as tilted by Trump IS a political court and that has been admitted and not denied. The picks are now come solely off the Federalist Society picked lists, with all candidate pre qualified as Far right ideological driven judges. As Trump made clear, we absolutely KNOW how they will rule on certain issues, as that has been pre screened.
That came about as the Right, expressed great frustration how prior Right Republican justices were too intellectual and could be swayed to vote with the other side on key issues. The Right no longer wants these intellectual, big resume types, as candidates for the SC which is why they are filling the lower courts with Aileen Cannon and Matthew Kacsmaryk types who are young, dumb and complete ideologues who will ALWAYS vote the party, ideologue line and are immune to logic and truth and counter arguments.
Each and every new SC Justice the Federalist society will be more political, more ideological and younger.
But that does not mean all current Justices rule currently on ideological lines. Most were not selected this way, and this is mostly a new Magat thing.
So you are simply wrong on your point.