What I mean by Biden being sick is that he shows serious signs of dementia. He forgets what he is talking about mid sentence, and gets defensive and violent about it when he does.
It seems you have some respect for Bernie, as do I, but you classifying them as friends is a big longshot. They don’t share the same viewpoint on much, if any politics at all. The only reason Bernie has thrown his support behind Biden is because he said he would support the Democratic nominee who ever it turned out to be. In other words he is an honest man.
Biden is a bad candidate for many reasons. But the main reason I can’t vote for him is because of his continual support of the wars the USA is waging all around the globe, and the billionaires getting richer from them. He has voted for them again and again.
If you would like a good candidate to make comparison with take a look at the Green Party’s Howie Hawkins, and what he stands for.
Good luck in your country. I hope for you the best.