Ah yes, the mental contorting is strong with this one. Abrogating seniority? Really? I'd love to hear more about how this would abrogate your seniority. As was mentioned several times before. If your dropping of MLOA has no bearing on whether you'd be legal for that SS, then have at it, pick up all the SS you want. If the only reason you are legal for the SS is by your use of MLOA, you go to the bottom of the list. How is that abrograting your seniority? Really, you're going to have to lay it out step by step.

Are people who call in sick and are placed at the bottom of the GS priority list when the only reason they are legal for said GS is by calling in sick, is their seniority also abrogated?

This deflection by some military bros, their downplaying or straight up denial that this abuse doesn't occur just makes the spotlight even more intense. As I mentioned before, if you want to make a good deal for yourself at the expense of the company. Go for it. If you are trying to make a good deal for yourself by jumping in front of other pilots, good luck with the inevitable pushback from that. That's total bs, and this "woe, is me" victim stance makes it even more pitiful.