The way I understand it, you refuse to eat lab-grown meat simply because you dismiss it as "fake," thus lacking in something compared to livestock meat. Why, though? There is no intrinsic, special value in livestock meat -or any food, for that matter- besides taste and nutritional properties. The day these two attributes, together with cost and environment footprint, become on par or preferable to livestock meat's, all other considerations should fly out of the window.