I appreciate our electoral system more too, we’ve had some deluded politicians but thankfully it is easy to get rid (Liz Truss for example). Biden is elderly, he cannot cope or perform in the job and it is embarrassing. Zelensky handled the disrespectful comments well, I guess people make allowances.
I have handled a similar situation years ago, when my elderly grandmother would not give up driving although she was no longer competent due to declining brain function. Sometimes someone needs to step in and take charge for the sake of everyone.