Well it's good for Ukraine then that Russia doesn't really have a lot of modern tanks.
> Let alone lol Javelin with top-down, 900mm+ penetration, and tandem charge.
A Javelin can engage tanks directly if they're obscured from above of if the distance to target is insufficient for flying on a top-down trajectory, and for those situations it needs the 900mm+ penetration (otherwise the direct attack mode would be unusable and would not be provided as a feature). So you can't make the inference that because Javelin has 900mm+ penetration, top-down attacks require 900mm+ penetration.
not sure about nlaw but javelin also features a side targeting mode
And you should tell that to USA's and Britain's military, which have chosen 400mm penetration (AT4), 500mm top-down penetration (NLAW), and 900mm top-down + tandem penetration (Javelin).
200mm, even top-down, is significantly less than other anti-tank weapons. I presume that the militaries who made these modern weapons know what they're doing.
I seriously doubt that. Almost all modern tanks have reactive-armor on top.
There's a reason why NLAW has 500+mm penetration AND top-down. NLAW is single-charge (no-tandem), to punch-through reactive armor requires a lot more penetration.
Let alone lol Javelin with top-down, 900mm+ penetration, and tandem charge.
I don't think 200mm or even 400mm is considered reliable today.