With the whole ADC meta how come nobody picks rammus/malphite?

So for a while I have just been doing tanky champions. As I like the feeling of messing with people,doing what I want,and still getting an A+ in terms of helping the team. a favorite of mine being due to his passive 30-90% armor. as with the ADC meta a and/or a supportive item like ,even a if we need to teamfight and defend at the same time as all these items also give armor. buffed to 30-90% so not much is lost in terms of armor. easy to CS with (I own like 4 ADC skins yet I don't play ADC cause I can't CS with some of them...or I just don't care. mainly due to their attack travel time) given being the main AP top laners,and I don't see them often he is rarely a bad pick. plus items like exist. the fearless mastery also helps putting you at like 119% armor with the shield up (and given a does like 110 damage and your shield is like 400 HP...) so,with so much armor how come nobody picks him? was changed to get 90% armor/50% MR, so he is basically malphite for jungle/more thornmail damage. not mentioning his E,doing about 400 damage full build and lowering attack speed. and with two FANTASTIC items for his job,he puts a 2.5 AS champion at like 1.1 AS. I just feel like everything is on his side RN for the meta with ADCs and both armor/MR items.