Explaining universality: infinite limit systems in the renormalization group method

I analyze the role of infinite idealizations used in renormalization group (RG hereafter) method explaining universality across microscopically different physical systems critical phenomena. argue that despite reference to limit such as with correlation lengths during RG process, key phenomena need not involve systems. develop my argument by introducing what regard explanatorily relevant property explanations: linearization* property; then motivate and prove a proposition about support view. As result, explanations are dispensable.