Ukraine is responding very smart, addressing Elon Musk directly in a tweet. They are using non conventional means, like
Using their anti-tank weapons not to fight the tanks, but instead destroy the gasoline trucks carrying the fuel for the tanks. A tank uses 1 liter of gasoline for every 500 meters, so it consumes a lot. By blocking the fuel supply, they delay the tanks and face the Russians on more equal terms (infantry against infantry). It is smart because with 1 anti-tank missile you can destroy up to three oil transport trucks (because of the fire explosion). With one hit, you can immobilize a tank battalion (of 4 tanks). Reducing fuel supply imposes a lasting logistical problem. Just look at this Twitter-post, you will see a burning fuel truck:
LINK1.
Another smart move is to lower support in Russia to send their son's into battle (the main reason why USA lost in Vietnam and had to retreat out of Afghanistan). The Ukraine let the captured Russians call their parents. Every upset parent will tell that to their friends and relatives, reducing support. 200 soldiers x 150 (people in 3rd-tier parent's network) is still a drop considering Russia has over 145 million inhabitants, but still it is smart way of psychological warfare :
LINK2