Separating video tracks from a dash cam?

I’m not sure if my Google-fu is weak, or I am using the wrong search terms… but, I have all these video files I wanna upload to YouTube… a ton of idiot drivers.

But, issue; I have a dual cam config, and I dun want to share my Lyft passengers; the second cam faces them.

So, I need to separate two video tracks, and save the front cam [Track 1].

I looked for at least an hour, and finding nothing but ‘Buy me here!’ and I get the trial version; they offer all these tools, except the one I asked google for… separating two video tracks!

The videos are H264 1080p lossless AVI, no sound on them [Or if there is, I dun care about them. I muted the mic for my passengers’ privacy.]

And, due to the sheer amount, it would be epic if I could do them in bulk, vs. me spending what limited time I have to load/trim/save each file individually.

Thanks; I’m sure I am just looking for the wrong terms, or Google is trying to sell me junk… both are very likely true!