I say fake. No post marks. No wrinkles. No return address. AND, especially, no sealed envelopes.
BUT. roll with it. It shows just how insecure our vote system is and how one person can have unattended access to ballots and ballot material. Regardless if he is destroying legit ballots, he has stolen ballot material, AND fraudulently filled out ballots.
One thing is for sure. The guy got his hands on some official ballots and envelopes. Maybe they were not real votes from voters, but they sure as heck were real ballots.
These were dropped off in a drop box, probably at a government facility like the county elections office or city hall. Therefore, no post marks, wrinkles or return address.
The envelopes are clearly sealed. You can hear the noise as he unseals them. Much more apparent in envelope #2 than in #1 (for example). You can also visually see he's having to unseal them, and not just flip open the envelope. He's unsealing them.