There’s a paywall, so I can’t see the “building bridges” part, but the summary says this

In his first interview with Israeli media, left-wing streamer Hasan Piker tells Haaretz that October 7 must be seen in the context of the Israeli occupation, that even liberal Zionists should be ‘named and shamed,’ and explains why most Americans just don’t like Israel anymore

So I kind of doubt “building bridges” was some centrist take. It was more likely about educating ignorant/confused American Zionists out of that mindset, if I had to guess based on what I know of him. If you have access to the article though, I’m happy to read a copy/paste of it.

I do agree that an “Israeli leftist” publication seems suspicious at best. However, Piker appears on other right-wing media all the time. Fox News, Peirs Morgan, etc. So I don’t think his giving an interview necessarily endorses them.

currently bragging about his positive interviews Israeli media where he said he wants to build bridges with Zionists

Which interview is this referring to?

Your main criticism of Biden is his age and not his unconditional support of genocide?