I keep seeing videos and people complaining that because there are hackers in the beta they will not buy the game.

The Developers have already said the anti-cheat will be released when the game comes out. This means it is NOT enabled in the BETA.

A Beta version of a software is a pre-release meant for testing. In this case how the servers handle the game, weapon balancing and any other issues that pop up. Examples of thing that have gotten fixed or will be fixed for the full release are: the dogs killstreak not working right, Patrol spawn points and the audio issues.

As for thing that are not being tested in the beta are: cross-progression between games, challenge tracking and THE ANTI-CHEAT

If on November 10 2021 you see hacker then that is another matter. And that date is right because while the game comes out on November 5 we always see launch issues and adding a new system (The anti-cheat) will make the release more complicated.

So just to recap:

The anti-cheat is NOT enabled in the BETA

BETA = Pre-release software subject to change