Autofill supps always lock bard/rakan or troll

i recently only get autofill supps they dont get the mindset of supp build full ap and think "they need to carry" am sick of it just no fun at all when you design champions that excell at tf and roaming its all gucci untill youre average platinum player thinks that means give up lane and screw youre ad up they get in champ select supp and they think : " with what can i carry" so fun they lock rakan/bard or a carry champ in case of bard/rakan they just have no experience on the champ and completly trow with bad calls in carry y well adc is useless only works when the team picks up wut still just retarded :/