Why? Because Trump still refuses to condemn Putin. Republicans continue to claim Putin would not have invaded for fear of Trump. Republicans continue to argue that it is all Biden's fault that Ukrainians are being murdered...and not Putin, as if Putin were actually telling the truth that Russia was threatened by Ukraine.
That is why. Right wingers need to realize the facts...criticizing Trump is divisive to you, but criticizing Biden and saying he's done nothing at all to help Ukraine contributes what to the conversation?
I've encouraged any one here to contact the White House and their congressmen and senators...I want more to be done. Biden is bound by the need to gather support from both parties as well as the governments around the world.