The numbers don't add up. The US has sent 7,000 javelins to Ukraine and overall they're been sent 30,000 anti-tank weapons and Ukraine is asking for hundreds more per day. It seems unlikely those javelins have killed 6,510 (.93 * 7000) Russian tanks, or that they will be destroying hundreds more per day. Many of the drone videos released by the Ukrainians show tanks hit by ATGMs but not actually being destroyed.
For sure the Russians have lots a lot of vehicles to ATGMs, they have proved to be extremely effective weapons, especially against tanks moving forward in tight formations without infantry support. However nobody is looking at the terrible infantry casualties Russia has suffered, due to poor tactics, training and resupply, and concluding that infantry are obsolete.
Here's a video of a Ukrainian tank ambushing a Russian convoy. Seems like a pretty effective weapon system to me.