You’ll never agree because you can only see it from your perspective. Try playing a non mage while the AD player plays a mage and you’ll change your tone.
I don’t see 6 AD items giving 60+ AD and 300+ health. Mage items give an absurd amount of stats to compensate for being entirely spell oriented, but most AD champions are also spell oriented these days.
AD champs have one item to counter mages - and it does it extremely well - but mages have like 6 to deal with AD champions or universal damage in general. Opinions differ depending on player skill, because the mages need to be smart enough to actually build the right items and know how to use them to succeed, but when they do they’re so hopelessly oppressive they shape the entire meta - look at Swain before his huge rebalance.