[2021] MR items are really weak with how much magic pen there is in the game

I play top lane mainly bruisers and juggernauts, this issue has been really frustrating since the beginning of the season with dd being anti-physical damage only and the really bad MR items like silvermer dawn (really like who even builds this??) and spirit visage now giving 40 mr, maw would never be built over steraks, if veigar for example built ludens void and sorcshoes + 3 other ap items he would have 44l40% mp, now i don't know how this suddenly became a normal thing to have but it amazes me how no one brought this up by know (dunno if someone made a post about it)

+ void staff is 2500 lol