I think my demonstration was sufficient to show that creators of faked photos might deliberately make verification difficult and how access to other photos can help in debunking them.

I've tried to address your points below, but I think they distract from the important issues. In any case, groups of people should have access to the original data from all purported leaks.

well first off all you can search to see if that image is available elsewhere

What you are looking for are photos someone has used to construct the photo in question. You also get other information (metadata), such as when the photo was taken, published, by whom and context.

someone with the right sources could take that image now and paste it into something else and just back date it and say " see , this pic is obviously fake cause its from 2012 and you would have no idea if "that evidence" was fake info or not

That is a concern. In my demonstration, one of the original photos was published by Rolling Stone and the other was from a dated Facebook post. And intelligence agency could falsify backdated social media, but backdating an article of a major publication would be harder.

Those pics you posted are obviously fake

One is fake while the other two are ostensibly legitimate photographs.

...meant to sway you in some political propaganda, you dont need to be a genius to figure that out, so you didnt solve a mystery, you just finally realized the obvious.

It fooled quite a number of people when it was distributed during the 2004 U.S. Presidential Election.

the relationship between The Bidens and Lady Gagy is already well established fact

This is altogether different from Lady Gaga doing hard drugs with Hunter Biden.