It is not about purity. It is about sovereignty. What are the arguments for why I should run Core on my $85 Lenovo? Shouldn't I be free to run an implementation that doesn't clog up my ram or drive with gamified spam? Isn't bitcoin FOSS? I don't care if someone wants to have a clogged mempool and relay VC garbage but why should I not have a choice? If the argument is obvious, the convince a pleb like me to run Core.