People have been tinkering with genes since the dawn of farming

True, but there is a HUGE difference between helping select which (of the same species) get to breed, and the current model of extracting genes from one species to put into another.

Neil D. Tyson changed his stance on GMOs

All the more reason not to trust them. NDT is a bought & paid for mouthpiece for the corporate structure. That exact video is the one that first proved to millions of us that he is absolutely not to be trusted, thanks for including it :-)

If this lab grow meat is safe

Exactly, if. Personally, I'm not going to be one of the ones who pays for the right to be a guinea pig to see if it's safe. (as "safe" as meat that is, which is not very safe, unless only consumed in very small amounts)