1) Not sure those tiny drones can actually knock those bombers out of commission. They may be repairable. Good propaganda coup at least, though. A Doolittle Raid of sorts.
2) The US should be quietly aiding Ukraine to hit long range bombers and other resources which support Russia's nuclear capabilities which can be used against us.
3) The US needs to think about protecting its own planes from a similar attack by China. A platoon sized group of military aged men from China came across the Rio Grande into the US a year or so ago. Who knows how many of them are here? Every air force base will need automated anti-drone systems.
We may need to start spreading the force out to many more, smaller bases, like we did in the cold war.
And start storing the planes under cover again. That may require changing our treaty obligations, as one news source said the US and Russia sore many of the bombers in plain sight for accountability under one of our nuclear treaties.