How many of these things get interpreted through the lens of our political perspectives.
If Biden were kissing this girl who looked detached, would it be viewed differently?
If Biden was using his hand to pull this woman in for a kiss, would it be viewed as him forcing her in?
If this were Biden using two hands to hold her in head in place, would it still be an adorable moment?
We could use the video of Bush making Merkel uncomfortable in the back massage, then associate it with the pictures above, and try to frame Bush as a guy who doesn't know boundaries.
Likewise, the defenders of Biden could take that video and say hey, Biden is just an affectionate guy, but just like Bush, he had people who didn't receive it well.
I just think our own perspectives can lead us to interpret events like these differently.