Unless you’ve got some info to show that the distribution of people with 2 sims, or with kids, isn’t the same across different voting populations across the country, what you’re pointing out is irrelevant to the ratio of votes between the candidates, and only pertinent to the absolute numbers.
Who has the burden of proof here? Should disparity in SIM card ownership be proven? Or the fact that they are evenly distributed be proven? Few things in life are evenly distributed, disparity is the norm!
